What is Blade of the Ruined King? ⚔️
Blade of the Ruined King is the definitive anti-tank, anti-HP-scaling on-hit item — a legendary that converts the target’s own current HP into bonus physical damage on every basic attack. Unlike flat damage items that deal a fixed bonus regardless of the target’s HP, MIST’S EDGE scales directly with how much HP the target currently has: a 5,000 HP tank takes more MIST’S EDGE damage than a 2,000 HP carry, making BotRK uniquely effective against health-stacking enemies who rely on raw HP bulk as their primary defensive layer.
The current HP calculation is BotRK’s defining mechanic: MIST’S EDGE deals 9% (melee) / 6% (ranged) of the target’s current — not maximum — HP as bonus physical on-hit. As the target’s HP decreases through the fight, MIST’S EDGE’s damage per hit decreases proportionally. At 5,000 current HP, a melee holder deals 450 MIST’S EDGE damage per auto. At 2,500 current HP (target at 50% HP), the same holder deals 225 MIST’S EDGE damage. This creates a diminishing return pattern where BotRK is most efficient at fight-start when targets have full HP.
The CLAWING SHADOWS slow is a reliable CC tool embedded into auto-attack patterns — no ability required. Three basic attacks against the same champion apply 3 stacks, with the third stack triggering a 30% movement speed reduction for 1 second on a 15-second cooldown. For melee fighters and on-hit ADCs who maintain sustained auto-attack sequences, CLAWING SHADOWS provides a consistent slow that enables sticking to kiting targets, disrupts enemy ADC positioning, and augments kill-closing pressure without requiring ability rotation.
| MIST’S EDGE — Current HP Damage Math Across Target HP ValuesFormula: 9% (melee) / 6% (ranged) of target’s CURRENT HP as bonus physical on-hit. Capped at 100 damage vs minions and monsters.Melee MIST’S EDGE damage by target’s current HP:5,000 current HP: 5,000 × 0.09 = 450 bonus damage per auto. (Typical tank at full HP)4,000 current HP: 4,000 × 0.09 = 360 bonus damage per auto.3,000 current HP: 3,000 × 0.09 = 270 bonus damage per auto.2,000 current HP: 2,000 × 0.09 = 180 bonus damage per auto.1,000 current HP: 1,000 × 0.09 = 90 bonus damage per auto.Ranged MIST’S EDGE damage at 5,000 HP: 5,000 × 0.06 = 300 bonus damage per auto.Ranged at 2,000 HP: 2,000 × 0.06 = 120 bonus damage per auto.ARAM amplified values (12%/10%):Melee at 5,000 HP: 5,000 × 0.12 = 600 bonus damage. Ranged at 5,000 HP: 5,000 × 0.10 = 500 bonus damage.Lifesteal from MIST’S EDGE:MIST’S EDGE benefits from lifesteal. At 10% lifesteal (BotRK base) + 450 MIST’S EDGE vs 5,000 HP tank: 450 × 0.10 = 45 HP healed from MIST’S EDGE alone per auto-attack, on top of the standard auto-attack lifesteal heal. At high attack speed (2.0 AS), MIST’S EDGE generates up to 90 HP per second pure lifesteal sustain against a 5,000 HP target.Pre-hit timing — CURRENT HP before basic attack damage:MIST’S EDGE calculates off the target’s current HP BEFORE the basic attack’s physical damage is applied. This is because on-hit effects apply before the base attack damage in the damage sequence. The bonus damage is calculated at the target’s HP state at the moment of the on-hit application, not after. This means the 9% is always based on slightly more HP than if it calculated post-hit. |
📊 Base Statistics
| Statistic | Value |
| Total Cost | 3,200 gold |
| Combine Cost | 725 gold |
| Sell Price | 2,240 gold |
| Attack Damage | +40 AD |
| Attack Speed | +25% attack speed |
| Life Steal | +10% lifesteal |
| MIST’S EDGE: Trigger | Basic attacks (on-hit) |
| MIST’S EDGE: Damage (melee) | 9% of target’s current HP as bonus physical on-hit |
| MIST’S EDGE: Damage (ranged) | 6% of target’s current HP as bonus physical on-hit |
| MIST’S EDGE: Cap vs minions/monsters | Maximum 100 damage (does not cap vs champions) |
| MIST’S EDGE: Damage type | Proc damage — does NOT trigger spell effects |
| MIST’S EDGE: Structure interaction | Does NOT apply to structures |
| MIST’S EDGE: Lifesteal | Bonus damage from MIST’S EDGE benefits from lifesteal |
| MIST’S EDGE: Calculation timing | Calculates off current HP BEFORE basic attack damage (on-hit applies first in damage sequence) |
| CLAWING SHADOWS: Trigger | Basic attacks on-hit against enemy champions |
| CLAWING SHADOWS: Stacks | Up to 3 stacks; each stack lasts 6 seconds |
| CLAWING SHADOWS: Effect | 3rd stack consumes all: slows target by 30% for 1 second |
| CLAWING SHADOWS: Cooldown | 15 seconds (after slow fires) |
| CLAWING SHADOWS: Spell shield | NOT blocked by spell shield |
| Item limit | Limited to 1 Blade of the Ruined King |
| Item ID | 3153 |
| Availability | SR 5v5, ARAM, Nexus Blitz, Arena |
| ARAM: MIST’S EDGE (melee) | 12% of target’s current HP |
| ARAM: MIST’S EDGE (ranged) | 10% of target’s current HP |
| Arena: Attack Damage | 30 AD (reduced from 40) |
| Arena: Attack Speed | 20% (reduced from 25%) |
| Arena: MIST’S EDGE (melee) | 8% of target’s current HP (reduced from 9%) |
| Arena: MIST’S EDGE (ranged) | 5% of target’s current HP (reduced from 6%) |
| Arena: CLAWING SHADOWS slow | 30% melee / 15% ranged (ranged slow reduced from 30%) |
🗺️ Map-Specific Differences
| Stat | SR / Nexus Blitz | ARAM | Arena |
| Attack Damage | SR/NB: 40 AD | ARAM: 40 AD | Arena: 30 AD (−10) |
| Attack Speed | SR/NB: +25% | ARAM: +25% | Arena: +20% (−5%) |
| MIST’S EDGE (melee) | SR/NB: 9% current HP | ARAM: 12% (+3%) | Arena: 8% (−1%) |
| MIST’S EDGE (ranged) | SR/NB: 6% current HP | ARAM: 10% (+4%) | Arena: 5% (−1%) |
| CLAWING SHADOWS slow | SR/NB: 30% | ARAM: 30% | Arena: 30% melee / 15% ranged |
| Lifesteal | SR/NB: 10% | ARAM: 10% | Arena: 10% |
| Minion/monster cap | SR/NB: 100 max | ARAM: 100 max | Arena: 100 max (assumed) |
| ARAM — Significantly Buffed MIST’S EDGE:ARAM increases MIST’S EDGE to 12% (melee) / 10% (ranged) of current HP — substantially higher than SR’s 9%/6%. At 5,000 HP: melee MIST’S EDGE hits for 600 damage per auto, ranged for 500 damage per auto. ARAM’s short-map team-fight format means HP-stacking tanks and bruisers are constant targets — BotRK’s enhanced ARAM values make it one of the strongest possible purchases in ARAM for both melee and ranged on-hit builds against HP-stacking compositions.Arena — Balanced Reduction:Arena reduces AD (40 → 30), AS (25% → 20%), and MIST’S EDGE (9%/6% → 8%/5%), while the melee CLAWING SHADOWS slow remains 30% but the ranged slow is reduced to 15%. The reductions are moderate — Arena BotRK still provides the core current-HP damage identity, with the MIST’S EDGE % reduction balanced against Arena’s typically longer fight durations and higher HP builds from 2v2 augments. |
🔨 Recipe & Components
| Component | Cost | Notes |
| Blade of the Ruined King (Total) | 3,200 gold | 40 AD + 25% AS + 10% lifesteal + MIST’S EDGE + CLAWING SHADOWS |
| Vampiric Scepter | 900 gold (550 combine) | Long Sword + 550 combine; +15% lifesteal at component — early lane sustain from lifesteal before full item; also builds into Bloodthirster, Ravenous Hydra, other lifesteal items |
| └ Long Sword | 350 gold | AD input for Vampiric Scepter |
| Recurve Bow | 700 gold (450 combine) | Dagger + 450 combine; +25% attack speed at component — the AS input for BotRK; also builds into Runaan’s Hurricane, Wit’s End, Rageblade; completing Recurve Bow first provides AS spike for CLAWING SHADOWS stack acceleration |
| └ Dagger | 250 gold | AS component for Recurve Bow |
| Pickaxe | 875 gold | AD component; +25 AD at component stage |
| Combine Cost | 725 gold | Higher combine cost — components provide strong mid-build stats independently |
| Sell Value | 2,240 gold | ~70% return on investment |
| 🔑 Vampiric Scepter First — Early Lane Lifesteal:Vampiric Scepter (900g) completed on the first back provides +15% lifesteal at component stage — valuable in lanes where sustaining through chip damage or all-in exchanges is the primary laning challenge. Against poke-based lane opponents (Caitlyn, Ezreal, Teemo), early lifesteal partially offsets sustained poke damage through CS healing. Vampiric Scepter’s lifesteal also applies to MIST’S EDGE on-hit damage, meaning even before full BotRK completion, each auto-attack heals from both the base damage and the partial MIST’S EDGE component provided by Vampiric Scepter’s lifesteal.Recurve Bow First — AS and CLAWING SHADOWS Stacking:Recurve Bow (700g) first provides +25% AS, enabling faster auto-attack cycling and faster CLAWING SHADOWS stack application (3 autos → 30% slow). Against champions who kite melee range (Quinn, Lucian, Vayne), early AS means faster CLAWING SHADOWS slow application — reducing the time the kiter has to disengage before the slow lands. Recurve Bow is also the cheaper component, making it accessible on earlier backs. |
⚡ MIST’S EDGE & CLAWING SHADOWS — Complete Mechanics
MIST’S EDGE — Current HP Scaling Details
MIST’S EDGE is the most HP-efficient anti-tank on-hit damage source in the game, scaling directly with the target’s current HP rather than a fixed value. This means the damage is always proportional to how tanky the target currently is: a target with 4,000 HP takes more MIST’S EDGE damage than one with 2,000 HP, regardless of armor (MIST’S EDGE deals physical damage, so armor reduces it — but the pre-mitigation bonus is always 9%/6% of current HP).
The pre-hit timing rule ensures MIST’S EDGE calculates off maximum possible current HP for each auto-attack: on-hit effects apply before base attack damage in the engine’s damage sequence, so the 9% is always calculated against the slightly higher HP value that exists before the auto-attack’s own physical damage reduces it. The practical impact is minimal but technically means BotRK extracts marginally more damage per auto than a post-hit calculation would provide.
| ⚠️ MIST’S EDGE Critical Rules:1. Proc damage — does NOT trigger spell effects:MIST’S EDGE’s on-hit bonus is classified as proc damage, not ability or spell damage. Effects that trigger on spell hits (Electrocute requiring 3 unique sources including spell damage, spell-effect dependent item interactions) are not triggered by MIST’S EDGE. This is consistent with other on-hit proc damage items (Blade of the Ruined King, Wit’s End, etc.).2. Does NOT apply to structures:MIST’S EDGE does not deal bonus damage to towers, inhibitors, or the nexus. Only basic attack auto-attack damage and abilities damage structures — MIST’S EDGE’s on-hit proc is suppressed against structures entirely. BotRK’s structure value comes purely from the 40 AD and 25% AS, not the passive.3. MIST’S EDGE benefits from lifesteal:The bonus physical damage from MIST’S EDGE applies the holder’s lifesteal to the on-hit damage amount. At 10% lifesteal (BotRK’s own lifesteal), each MIST’S EDGE proc heals for 10% of its damage in addition to the base auto-attack’s lifesteal heal. Against a 5,000 HP tank (450 MIST’S EDGE at 9% melee), the MIST’S EDGE alone heals 45 HP per auto from the 10% lifesteal.4. Damage is physical (reduced by armor):MIST’S EDGE’s 9%/6% current HP damage is physical damage, affected by the target’s armor value. Against a tank with 200 armor (approximately 66.7% physical damage reduction), 450 pre-mitigation MIST’S EDGE damage becomes approximately 150 post-armor. Physical armor penetration (lethality, % armor pen) improves MIST’S EDGE effectiveness against high-armor targets — pairing with armor pen items amplifies the per-auto bonus damage. |
CLAWING SHADOWS — Slow Stacking Mechanics
CLAWING SHADOWS stacks from every on-hit auto-attack against enemy champions — not from abilities or on-hit ability effects. The 3-stack accumulation with a 6-second per-stack duration creates a sustained slow delivery mechanism: even at standard attack speed, 3 consecutive autos within the 6-second window reliably trigger the slow. At higher attack speeds (1.5+ AS), the 3 stacks can accumulate in 2 seconds or less.
The 15-second cooldown starts after the slow fires (stack 3 consumption). During the 15-second reset window, CLAWING SHADOWS stacking begins again immediately — the stacks don’t pause. A sustained fight against the same champion sees CLAWING SHADOWS fire approximately once every 15 seconds (assuming 3+ autos land within the 6-second stack window), providing reliable repeated slow application in extended exchanges. For champions with high attack speed (1.5–2.5 AS), the 15-second cooldown is the binding constraint — stacks reach 3 much faster than 15 seconds.
CLAWING SHADOWS is not blocked by spell shield — the stacking and slow fire through Sivir E and Nocturne W. This means melee fighters who rely on CLAWING SHADOWS for kite-resistance maintain the slow delivery even against spell-shield targets, avoiding the common frustration of engage CC being blocked by Sivir.
| CLAWING SHADOWS Slow Timing — Attack Speed vs Stack Application Rate:At 0.8 AS (low AS fighter): 3 autos take 3.75 seconds (1.25 sec/auto). 3 stacks within 6-second window: achievable. First CLAWING SHADOWS slow fires ~3.75 seconds after first auto.At 1.5 AS (moderate AS on-hit): 3 autos take 2 seconds (0.67 sec/auto). First CLAWING SHADOWS slow fires ~2 seconds after first auto.At 2.5 AS (maximum AS on-hit build): 3 autos take 1.2 seconds (0.4 sec/auto). First CLAWING SHADOWS slow fires ~1.2 seconds after first auto. Each subsequent CLAWING SHADOWS fires every 15 seconds (cooldown bound, not stack-rate bound at this AS level).Practical: The higher the attack speed, the faster the first CLAWING SHADOWS slow fires and the harder it becomes for the target to disengage before the slow lands. For kite-prevention, the first CLAWING SHADOWS slow is most critical — each subsequent one is on the 15-second cooldown. Maximise first-slow speed through attack speed investment. |
🎯 When to Build Blade of the Ruined King
Build BotRK When:
- The enemy team has multiple HP-stacking tanks or bruisers with 3,500+ HP: MIST’S EDGE’s 9% current HP scales hardest against targets who invest in maximum HP as their primary defensive stat. Against Malphite (3,500+ HP mid-game), Cho’Gath (5,000+ HP from feast), Mundo (500 HP regen + massive HP pool), Sion (passive HP scaling), and Warmog’s Armor rushers, MIST’S EDGE deals 315–450+ damage per auto on a full-HP tank — significantly more than flat on-hit damage from other items. For every 1,000 HP the tank has, BotRK melee deals an additional 90 damage per auto.
- Playing a sustained on-hit auto-attack champion who needs anti-tank damage and kite prevention: Vayne, Kog’Maw, Kayle, Tristana, Master Yi, Warwick, Jax — on-hit champions whose win condition involves sustained auto-attacking HP-stacking enemies directly benefit from MIST’S EDGE’s % HP damage and CLAWING SHADOWS’ consistent slow. The attack speed from BotRK accelerates both MIST’S EDGE damage rate and CLAWING SHADOWS stack application.
- The enemy carry or priority target relies on movement speed to kite or escape: CLAWING SHADOWS’ 30% slow from 3 autos is a reliable melee-gap-close tool against kiting ADCs and mobile carries. Champions like Caitlyn, Ezreal, Lucian, and Jinx who maintain range through constant repositioning can be pinned during CLAWING SHADOWS’ 1-second slow window, allowing melee champions to close the distance and extend the fight.
- Wanting early sustain through lifesteal in a physical damage lane: BotRK’s 10% lifesteal applies to both auto-attack damage and MIST’S EDGE on-hit damage. In sustained physical fights (bruiser vs bruiser top lane, ADC vs ADC bot lane with poke), the combined lifesteal from both damage sources provides consistent HP recovery that pressures opponents who lack equivalent sustain. Vampiric Scepter as a first component provides early lifesteal before full completion.
- Building an on-hit stack build where attack speed and on-hit damage are the primary scaling vectors: On-hit builds (Kog’Maw, Vayne, Kayle, Teemo) that combine multiple on-hit sources (Wit’s End, Guinsoo’s Rageblade, Kraken Slayer) benefit from BotRK’s attack speed amplification and MIST’S EDGE’s % HP damage. In multi-on-hit builds, each attack speed increase from BotRK proportionally increases ALL on-hit damage rates — BotRK’s 25% AS is a force multiplier for every other on-hit item in the build.
- In ARAM where the 12%/10% MIST’S EDGE values make it one of the strongest available items: ARAM’s enhanced MIST’S EDGE (12% melee, 10% ranged) substantially increases BotRK’s damage output. Against ARAM’s typical HP-stacking tank compositions (every player builds HP for ARAM durability), BotRK’s 12% current HP melee on-hit deals 600 damage per auto at 5,000 HP — more than most abilities. BotRK is a tier-1 ARAM item for virtually every physical damage champion.
Consider Alternatives When:
- The enemy team is composed primarily of squishy low-HP targets (mages, ADCs, assassins): MIST’S EDGE’s 9% current HP on a 1,500 HP squishy is only 135 bonus damage per auto — less efficient than flat on-hit sources (Wit’s End, Guinsoo’s Rageblade) or crit-based burst damage against low-HP targets. Against teams without HP-stackers, other items provide more damage per gold for attacking squishies.
- The primary damage type in the build is magic: MIST’S EDGE deals physical damage (affected by target armor). AP builds gain no benefit from MIST’S EDGE’s physical on-hit. Magic damage on-hit alternatives (Wit’s End for magic damage on-hit + MR strip) are the correct choice for hybrid or magic damage on-hit builds.
- Needing immediate burst damage from a single rotation rather than sustained auto-attack investment: BotRK requires auto-attacking repeatedly to maximise MIST’S EDGE damage and accumulate CLAWING SHADOWS. Pure burst assassin builds (Rengar, Zed) that deliver 90% of damage in a 0.5-second ability window gain minimal BotRK value — items that amplify ability damage (lethality items, Duskblade) provide more burst return per gold.
👥 Best Champions for Blade of the Ruined King
Optimal — On-Hit and Anti-Tank Sustained Fighters
- Vayne: Silver Bolts (W) passive: every 3rd basic attack deals 8% max HP true damage, stacking from auto-attacks. BotRK’s MIST’S EDGE (9% current HP physical) + Silver Bolts (8% max HP true) creates the strongest anti-HP-scaling combination in the ADC roster — each 3rd-auto Silver Bolts proc is supplemented by both the base MIST’S EDGE on-hit AND the true damage. CLAWING SHADOWS slow prevents tanks from disengaging during the Silver Bolts accumulation window. Final Hour (R) invisibility repositioning with the CLAWING SHADOWS slow already active is exceptionally difficult for tanks to avoid.
- Kog’Maw: Bio-Arcane Barrage (W) gives Kog’Maw a passive on-hit that already deals % max HP magic damage — BotRK’s MIST’S EDGE adds 6% current HP physical damage on top of W’s on-hit. Kog’Maw’s attack range extension from W makes him the premier long-range tank-shredder: ranged BotRK at 6% current HP + W on-hit at 4–8% max HP (scaling with AP) against a 5,000 HP tank = 300 + 200–400 bonus damage per auto from on-hit sources alone at extreme AP builds. CLAWING SHADOWS at 6% slow (Arena 15%) is less impactful for Kog’Maw at range, but the attack speed + lifesteal synergise with W’s attack range during the active window.
- Kayle: Divine Ascent (P) evolves Kayle’s auto-attacks through levels — at level 11+, Holy Flame (W) passive adds magic on-hit to every attack. BotRK’s MIST’S EDGE adds physical on-hit alongside the magic on-hit, creating a dual-element on-hit package. At 16+, Kayle’s ranged attack pattern with Starfire Spellblade (Q) + MIST’S EDGE + Holy Flame stacks on each hit. BotRK’s 25% AS accelerates Kayle’s attack cadence during Divine Judgment (R) ult invulnerability, maximising the combined on-hit damage during the safe window.
- Master Yi: Wuju Style (E) true damage passive on every basic attack (10% bonus AD true damage per auto). BotRK’s MIST’S EDGE (9% current HP physical) stacks with E’s true damage per auto — Master Yi’s auto-attack sequence against tanks deals MIST’S EDGE + Wuju Style + base AD on each hit. Alpha Strike (Q) doesn’t directly apply on-hit (Q hits apply on-hit effects), so MIST’S EDGE fires on each Alpha Strike hit. CLAWING SHADOWS’ slow prevents targets from escaping during the Alpha Strike gap-close window. Meditate (W) healing combined with MIST’S EDGE lifesteal during the heal amplification phase of W creates exceptional sustained HP recovery.
- Warwick: Eternal Hunger (P) provides lifesteal scaling with missing HP — at low HP, Warwick’s base lifesteal is 50%. BotRK’s 10% lifesteal stacks additively with Eternal Hunger’s conditional lifesteal during the high lifesteal window. Primal Howl (E) fear + Jaws of the Beast (Q) lunge create the initial engage; CLAWING SHADOWS’ slow then activates during the sustained auto-attack phase, preventing the target from disengaging. MIST’S EDGE at 9% is particularly effective against HP-stacking bruisers in the top or jungle role that Warwick typically hunts.
- Viego: Blade of the Ruined King (lore relevance aside), Viego’s Spectral Maw (W) shield/charge + Harrowed Path (E) spectral wraith + Last Embrace (R) stun. Viego’s Sovereign’s Domination (P) possession mechanic makes sustain and HP recovery critical — possessing a target temporarily restores HP, and MIST’S EDGE lifesteal during the sustained auto-attack phase maximises HP recovery before possession. CLAWING SHADOWS’ slow prevents targets from escaping during the auto-attack accumulation window before R stun.
- Trundle: Chomp (Q) AD steal + Subjugate (R) stat-drain of target’s armor, MR, HP. Trundle steals the enemy’s stats — against a tank with 300 armor, Trundle gains armor while the tank loses it. BotRK amplifies this identity: MIST’S EDGE’s 9% current HP physical damage against the already-armor-reduced tank (Subjugate R strips armor), combined with Pillar of Ice (W) slow + CLAWING SHADOWS slow, creates a maximum-debuff sustained fight scenario where the target has less armor AND is being hit by % HP physical damage AND is slowed. Glacial Path (E) charge or Pillar of Ice zone creates engagement for CLAWING SHADOWS to fire.
- Tristana: Rapid Fire (Q) massive attack speed boost for 7 seconds + Explosive Charge (E) stacking bomb detonation. Rapid Fire + BotRK’s 25% AS creates extremely high attack speed windows during Q active — potentially 3.0+ AS for 7 seconds. At 3.0 AS, 3 CLAWING SHADOWS stacks accumulate in 1 second, the slow fires, then 15 seconds cooldown while stacks rebuild. MIST’S EDGE at 6% ranged fires at 3.0 hits per second: 3.0 × 6% current HP = 18% current HP per second from MIST’S EDGE alone. Against a 3,000 HP tank, this is 540 MIST’S EDGE damage per second during Rapid Fire windows.
- Jax: Leap Strike (Q) gap-close + Empower (W) AoE enhancement + Counter Strike (E) dodge + Grandmaster’s Might (R) passive AS every 3rd auto. Jax’s Grandmaster’s Might R passive fires on every 3rd auto — the same attack that would otherwise be a CLAWING SHADOWS 3rd-stack slow candidate. These abilities stack independently, so the 3rd auto can deliver both Grandmaster’s Might (R) passive AoE magic damage AND CLAWING SHADOWS slow simultaneously. BotRK’s attack speed accelerates Grandmaster’s Might passive cycle rate and MIST’S EDGE damage rate against the HP-heavy bruisers Jax fights in top lane.
Situational
- Irelia: Bladesurge (Q) resets on takedowns, Defiant Dance (W) damage reduction. BotRK’s CLAWING SHADOWS slow and MIST’S EDGE synergise with Irelia’s sustained melee pattern. Situational — Trinity Force provides stronger burst per Q reset, but BotRK is correct in HP-heavy tank matchups where MIST’S EDGE outvalues Trinity Force’s Sheen SPELLBLADE against high HP targets.
- Xin Zhao: Three Talon Strike (Q) 3rd-hit knockup + CLAWING SHADOWS 3rd-auto slow create redundant 3rd-auto effects. Q’s knockup takes priority timing-wise; CLAWING SHADOWS slow still applies. BotRK is situational — most effective in compositions where tankiness justifies the % HP on-hit over flat damage alternatives.
Not Recommended
- Pure burst mages and AP builds: MIST’S EDGE is physical; no benefit from AP scaling. AS provides no value for pure casters.
- Champions facing squishy all-AP / all-low-HP compositions: MIST’S EDGE at 9% of 1,500 HP = 135 damage — less efficient than flat on-hit items or crit burst against glass-cannon targets.
⚙️ Recommended Build Paths
Vayne — On-Hit Anti-Tank ADC
- Dagger or Long Sword — Game start: AS or AD depending on matchup
- Vampiric Scepter — First back (900g): lifesteal for lane sustain; Silver Bolts W 3rd-hit lifesteal healing
- Blade of the Ruined King — First item (3,200g): MIST’S EDGE + Silver Bolts on 3rd auto = dual % HP damage stacking; CLAWING SHADOWS slow enables 3rd-hit Silver Bolts accumulation vs kiting tanks
- Guinsoo’s Rageblade — Second item: WRATH: phantom hits with on-hit effects every 3rd attack; Phantom hits trigger MIST’S EDGE and Silver Bolts W — effectively applying both % HP on-hits at double rate; AS + on-hit damage
- Kraken Slayer — Third item: BRING IT DOWN: true damage every 3rd attack; Vayne now has three 3rd-attack procs (Silver Bolts W, Guinsoo’s phantom hit, Kraken Slayer true damage) all firing in coordination against tanks; definitive anti-tank three-item core
- Wits End — Fourth item: FRAY: magic on-hit damage + MR strip; AS + MR; magic pen against reduced MR targets from FRAY amplifies the magic damage from Kraken Slayer true damage being partly influenced by — note: Kraken Slayer is true damage, not magic, but Wit’s End adds its own magic on-hit
- Runaan’s Hurricane — Fifth item: WIND’S FURY bolts apply on-hit effects; each Hurricane bolt triggers MIST’S EDGE and Silver Bolts W; in multi-target scenarios, 3 simultaneous MIST’S EDGE procs per auto
Master Yi — On-Hit Sustained Fighter
- Dagger — Start for early AS
- Vampiric Scepter — First back: lifesteal combined with Meditate W healing during early fights
- Blade of the Ruined King — First item: MIST’S EDGE 9% current HP melee + Wuju Style E 10% bonus AD true damage per auto; CLAWING SHADOWS ensures Yi can’t be kited out during E active window
- Guinsoo’s Rageblade — Second item: Phantom hits trigger MIST’S EDGE every 3rd auto at double rate; Yi’s high AS from Q alpha strike and R Highlander makes phantom hit accumulation extremely fast
- Wit’s End — Third item: FRAY magic on-hit + MR strip; AS; Yi’s Meditate W grants healing amplification combined with MIST’S EDGE lifesteal creates exceptional sustain during W cast
- Kraken Slayer — Fourth item: True damage on 3rd attack; completes Yi’s anti-tank identity with three different 3rd-auto effects (if Guinsoo’s phantom hit timing aligns)
| 💡 BotRK + Guinsoo’s Rageblade — Doubled MIST’S EDGE Effective Rate:Guinsoo’s Rageblade‘s WRATH passive fires a phantom hit every 3rd basic attack. Phantom hits apply on-hit effects including MIST’S EDGE. The result: MIST’S EDGE effectively fires on every 1.5 autos instead of every auto (phantom hit doubles the effective on-hit application rate).Against 5,000 HP tank at 2.0 AS (post-Rageblade):Standard MIST’S EDGE: 2.0 autos/sec × 9% × 5,000 HP = 900 MIST’S EDGE damage/second.With Rageblade phantom hits: Effective 2.0 autos/sec + 0.67 phantom hits/sec (every 3rd at 2.0 AS) = effectively 2.67 MIST’S EDGE triggers/sec. 2.67 × 9% × 5,000 = 1,200 MIST’S EDGE damage/second — a 33% increase in MIST’S EDGE damage rate from Rageblade alone.Vayne Silver Bolts W interaction: Phantom hits count toward Silver Bolts 3-hit accumulation. Combined with MIST’S EDGE, the Rageblade-Vayne-BotRK combo applies both % HP damage sources at accelerated rate — the benchmark on-hit anti-tank build in the game. |
🔄 Similar Items — On-Hit & Lifesteal Family
| Item | Profile | vs. BotRK |
| Bloodthirster | +80 AD, +15% lifesteal; ICHORSHIELD: overheal lifesteal converts to persistent shield (165–345 HP based on level) | High AD + higher lifesteal + persistent shield vs BotRK’s attack speed + lower AD + on-hit % HP damage. Bloodthirster for ADC damage + lifesteal sustain builds without anti-tank need. BotRK for AS-heavy on-hit builds and % HP anti-tank damage |
| Ravenous Hydra | +65 AD, +15 AH, +400 HP; CARNIVORE: omnivamp from ALL damage; CRESCENT AoE physical on-hit | Omnivamp (heals from abilities too) vs BotRK’s lifesteal (auto-attacks only) + % HP on-hit. Ravenous Hydra for ability-heavy bruisers. BotRK for auto-attack sustained champions who need % HP damage and CC slow |
| Wit’s End | +40 AD, +50% AS, +40 MR; FRAY: magic on-hit damage + MR reduction; CAUTERIZE: +12% AS per 20% missing HP | Magic on-hit vs physical on-hit. Wit’s End for tankier on-hit builds against AP teams (MR benefit). BotRK for physical on-hit + % HP specific damage. Often built together in full on-hit builds (Wit’s End + BotRK complementary) |
| Kraken Slayer | +45 AD, +25% AS; BRING IT DOWN: every 3rd attack deals true damage (70–320 based on level) regardless of armor | True damage on-hit (ignores armor) vs BotRK’s % current HP physical on-hit (reduced by armor). Kraken Slayer for ADC anti-tank true damage. BotRK for sustained % HP damage + CLAWING SHADOWS slow. Often combined in ADC anti-tank builds as complementary on-hit sources |
| Guinsoo’s Rageblade | +30 AD, +40% AS; WRATH: phantom hit every 3rd basic attack (applies on-hit effects); SEETHING STRIKE: AS stacks per hit | Phantom hits double MIST’S EDGE effective application rate. Core BotRK synergy item — not an alternative but a direct complement for on-hit champions. Build together for maximum MIST’S EDGE throughput |
| Runaan’s Hurricane | +40 AD, +35% AS, +20% crit; WIND’S FURY: 2 additional bolts to nearby targets on basic attack (each applies on-hit) | Multi-target MIST’S EDGE application — each Hurricane bolt triggers MIST’S EDGE on a separate target. In teamfights with 3 adjacent enemies: 3× MIST’S EDGE per auto. Core ADC on-hit multi-target synergy item with BotRK |
❌ Common Mistakes & How to Avoid Them
- Building BotRK into squishy low-HP compositions expecting high MIST’S EDGE value: Against teams with 1,200–1,800 HP squishies, MIST’S EDGE deals 108–162 damage per auto (melee, 9%) — less damage per auto than flat on-hit items. BotRK’s strength scales with enemy HP. Against glass-cannon teams, flat damage (Wit’s End, Kraken Slayer) or crit damage (Infinity Edge) provides more return per gold against low-HP targets. Evaluate the enemy team composition in champion select — BotRK is only a first item when 2+ enemies stack HP.
- Forgetting MIST’S EDGE does not damage structures — wasting passive during tower dives: MIST’S EDGE does not apply to towers, inhibitors, or the nexus. During tower dives or structure-taking phases, the BotRK holder deals only base auto-attack damage to the structure (40 AD + 25% AS contribution), with no MIST’S EDGE bonus. Factor this into tower dive timing — MIST’S EDGE’s absence means less effective damage against the tower during dive scenarios than the item’s overall damage profile suggests.
- Not accounting for MIST’S EDGE physical damage being reduced by armor: MIST’S EDGE deals physical damage — armor reduces it like any other physical damage source. Against a 200-armor tank, 9% current HP MIST’S EDGE damage is reduced by approximately 66.7%: 450 pre-mitigation becomes ~150 post-armor. Pairing BotRK with armor penetration items (Last Whisper, Mortal Reminder, Lord Dominik’s Regards) maintains MIST’S EDGE efficiency against high-armor tanks. Without armor pen against 300+ armor targets, MIST’S EDGE’s pre-mitigation advantage is heavily eroded post-armor.
- Building BotRK as the only on-hit item without attack speed synergies: BotRK’s MIST’S EDGE generates damage per attack — higher attack speed means more MIST’S EDGE procs per second. A BotRK holder at 0.8 AS deals MIST’S EDGE at half the rate of one at 1.6 AS. Build attack speed alongside BotRK to maximise MIST’S EDGE throughput: Recurve Bow first, Guinsoo’s Rageblade second, Wit’s End third — each item multiplies the value of MIST’S EDGE through the increased auto-attack rate.
- Missing CLAWING SHADOWS slow timing by switching targets between autos: CLAWING SHADOWS stacks accumulate on a specific champion target — switching auto-attack targets between autos resets the stack counter on the original target while beginning a new stack on the new target. To reliably fire CLAWING SHADOWS, continuously auto-attack the same champion for 3 consecutive hits without switching. Avoid the common MOBA habit of clicking enemies randomly — commit to 3 autos on the same target before switching to trigger the slow.
✅ Best Practices
- Prioritise building BotRK as a first item in the specific HP-stacking enemy matchups where MIST’S EDGE value is highest: Against Cho’Gath, Sion, Mundo, Malphite, Ornn, and other HP-scaling tanks, BotRK’s 9% current HP damage at first item (enemy tank at 3,000–4,000 HP mid-game) provides 270–360 bonus damage per auto. The earlier BotRK completes against these targets, the more total MIST’S EDGE damage accumulates across the game. Do not delay BotRK into a second or third item when the enemy composition rewards it as a first purchase.
- Combine with Last Whisper or Lord Dominik’s Regards to amplify MIST’S EDGE post-armor efficiency: MIST’S EDGE physical damage is armor-mitigated like all physical damage. Against tanks who stack 200+ armor (Plated Steelcaps + armor items), armor penetration items convert pre-mitigation MIST’S EDGE damage more efficiently. Lord Dominik’s Regards (35% armor pen) maintains MIST’S EDGE’s effective damage rate against high-armor stackers, ensuring the 9% current HP damage value translates more closely to the pre-mitigation number.
- Stack CLAWING SHADOWS on the highest-priority target and commit 3 autos before switching: Identify the priority kill target (enemy carry, high-threat champion) and commit 3 consecutive autos before switching to apply CLAWING SHADOWS slow. The slow window (1 second) creates the burst window for abilities — gap-close abilities, CC, and allied follow-up should be timed to fire during or immediately after the CLAWING SHADOWS activation. In melee fights, the slow also prevents the target from disengaging during the ability cast window.
- Pair with Guinsoo’s Rageblade for the strongest MIST’S EDGE throughput build: Rageblade’s phantom hits apply MIST’S EDGE at effectively 1.33× the normal rate (phantom hit every 3rd attack = 33% additional MIST’S EDGE procs). Against 5,000 HP tanks at 2.0 AS: standard MIST’S EDGE is 900 damage/second; with Rageblade phantom hits, effective MIST’S EDGE is 1,200 damage/second. For on-hit champions whose win condition is sustained % HP damage against tanks, BotRK + Rageblade is the definitive two-item anti-tank core.
- In ARAM, prioritise BotRK early regardless of champion — the 12%/10% MIST’S EDGE values are among the best ARAM item passives available: ARAM’s buffed MIST’S EDGE (12% melee, 10% ranged) combined with ARAM’s standard HP-stacking meta (everyone builds HP for ARAM durability) creates near-universal BotRK value for physical damage champions. Even ranged ADC champions who would not normally build BotRK in SR benefit from ARAM’s 10% ranged MIST’S EDGE — at 4,000 HP target, 10% ranged = 400 bonus damage per auto, competitive with the highest per-auto damage items in the ARAM item pool.
🎬 Final Summary
Blade of the Ruined King is the anti-HP-scaling item — a 3,200 gold legendary whose MIST’S EDGE passive converts the enemy’s HP investment into direct damage against them. The 9% current HP melee on-hit has no equal for sustained physical damage against HP-stacking tanks: every 1,000 HP the target has translates to 90 additional MIST’S EDGE damage per auto-attack, rewarding BotRK holders who face Cho’Gath, Mundo, Sion, and Warmog’s tank builds with damage scaling that flat-stat items cannot replicate against high-HP enemies.
The CLAWING SHADOWS slow — 30% for 1 second from 3 auto-attacks, not blocked by spell shield — provides reliable CC that doesn’t require ability investment, making BotRK the only item in the game that delivers both anti-tank % HP damage and melee-gap-close slow from the same passive source. For bruisers and on-hit ADCs whose primary challenge is closing distance on kiting carries and sustaining against tankiness, both passives solve different problems within the same 3,200 gold purchase.
The ARAM buff (12%/10% MIST’S EDGE) elevates BotRK to near-mandatory status in ARAM for physical damage champions against HP-heavy compositions — 600 damage per auto at 5,000 HP melee is among the highest single-item on-hit damage available in any mode. The Guinsoo’s Rageblade synergy (phantom hits applying MIST’S EDGE at 1.33× effective rate) and the Runaan’s Hurricane synergy (multi-target MIST’S EDGE from Hurricane bolts) extend BotRK’s damage into multi-target teamfight scenarios, making it not only an anti-tank dueling item but a teamfight-scaling on-hit foundation for full on-hit builds.
| Key Action Items:1. Build BotRK as the first item specifically against HP-stacking tank/bruiser compositions — MIST’S EDGE value at enemy 3,000–4,000 HP mid-game (270–360 bonus damage per auto melee) peaks earliest when purchased first; delay costs cumulative MIST’S EDGE damage across every fight where the HP difference is largest2. Commit 3 consecutive autos to the same target before switching — CLAWING SHADOWS stacks per specific target; switching resets the counter; identify the priority slow target (kiting carry, high-threat champion) and lock 3 autos before repositioning or switching3. Pair with Guinsoo’s Rageblade for the strongest MIST’S EDGE sustained output — phantom hits apply MIST’S EDGE at 1.33× effective rate (+33% MIST’S EDGE DPS from Rageblade alone); the BotRK + Rageblade two-item core is the definitive anti-tank foundation for Vayne, Kog’Maw, Master Yi, and Kayle4. In ARAM: buy BotRK on virtually every physical damage champion — the 12%/10% MIST’S EDGE values (vs SR’s 9%/6%) combined with ARAM’s HP-stacking meta create near-universal BotRK value; 600 damage per auto against 5,000 HP targets (melee) is among the highest on-hit damage available in ARAM per item slot |
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FAQ
Q: Does MIST’S EDGE calculate based on maximum HP or current HP?
A: Current HP — exclusively. MIST’S EDGE deals 9% (melee) / 6% (ranged) of the target’s current HP at the moment each basic attack lands, not maximum HP. As the target’s HP decreases during the fight, MIST’S EDGE damage per hit decreases proportionally. This means BotRK is most efficient at the start of a fight when the target has full current HP, and its per-hit damage decreases as the target takes damage throughout the engagement.
Q: Does MIST’S EDGE apply to towers or structures?
A: No — MIST’S EDGE does not apply to structures including towers, inhibitors, and the nexus. Only the BotRK holder’s base AD (40 AD) and attack speed (25% AS) contribute to structure damage. This limits BotRK’s tower-taking efficiency compared to items with flat on-hit damage against structures (though no common items specifically mention structure on-hit — most on-hit effects are champion-specific).
Q: Is CLAWING SHADOWS blocked by Sivir’s Spell Shield?
A: No — CLAWING SHADOWS is explicitly not blocked by spell shield. Auto-attacks against a Sivir with E active still apply CLAWING SHADOWS stacks, and the 3rd-stack slow fires through the spell shield. This makes BotRK’s CC reliable against spell-shield champions, unlike ability-based CC that is blocked by Sivir E or Nocturne W.
Q: Does the MIST’S EDGE bonus damage benefit from lifesteal?
A: Yes — MIST’S EDGE’s bonus physical on-hit damage benefits from lifesteal. BotRK’s own 10% lifesteal applies to both the base auto-attack damage and the MIST’S EDGE on-hit damage. At 9% melee MIST’S EDGE against a 5,000 HP tank (450 bonus damage), the 10% lifesteal from the MIST’S EDGE alone heals 45 HP per auto-attack, on top of the standard auto-attack’s lifesteal heal.
Q: Why is ARAM MIST’S EDGE significantly higher than SR?
A: ARAM’s map design (single lane, constant fighting, limited escape options) creates a format where HP-stacking is universally optimal for survivability. The ARAM balance team increases MIST’S EDGE to 12%/10% (vs SR’s 9%/6%) to maintain BotRK’s viability and provide effective anti-HP-stacking tools in a meta where HP-stacking dominates. The buff rewards BotRK purchases against the typical ARAM composition and prevents HP-tank strategies from being unanswerable in the format.
Q: What is the interaction between BotRK and Guinsoo’s Rageblade phantom hits?
Guinsoo’s Rageblade‘s WRATH passive fires a phantom hit every 3rd basic attack — and phantom hits apply on-hit effects including MIST’S EDGE. This means MIST’S EDGE fires on the phantom hit in addition to every regular auto-attack, effectively increasing MIST’S EDGE application rate by approximately 33% at standard attack speeds. For on-hit builds on Vayne, Kog’Maw, and Master Yi, BotRK + Guinsoo’s Rageblade is the definitive anti-tank two-item core because the phantom hits double-dip MIST’S EDGE without requiring additional attack speed investment beyond Rageblade’s own AS.