Mejai’s Soulstealer

What is Mejai’s Soulstealer? 📖

Mejai’s Soulstealer is the highest-ceiling AP item in the game for snowballing mages — but only when fully stacked. At 1,500 Gold with 25 stacks, it provides +145 AP total (20 base + 125 from stacks) plus +10% bonus movement speed, making it statistically the best AP-per-gold item by a wide margin in the game when at maximum stacks. The catch is obvious: you lose 10 stacks every death and the item is completely useless on a 0-stack empty book.

The item is exclusive to Classic Summoner’s Rift 5v5 and disabled on all other maps and modes (ARAM, Nexus Blitz, Arena). It builds from Dark Seal — the 350g component that provides early GLORY stacks before completing Mejai’s — and shares the GLORY item group (Limited to 1 GLORY item), meaning you cannot hold both Dark Seal and Mejai’s simultaneously. Dark Seal’s stacks transfer to Mejai’s upon upgrade, so any stacks built on Dark Seal are preserved when completing the item.

At 1,500 Gold, the base cost is among the lowest of any legendary item — the entire value proposition is the GLORY passive converting kills and assists into AP. Against compositions where the mage can safely snowball, this item provides the AP ceiling of Rabadon’s Deathcap at roughly 43% of its cost. The risk is the 10 stacks lost per death — at 10 stacks, a single death resets progress by 40% (10 of 25 stacks lost). Sell price: 1,050 Gold. ID: 3041.

📊 Base Statistics

📚 GLORY Passive — Complete Mechanics

Stack Acquisition — Kills, Assists, Maximum

GLORY stacks accumulate through champion kills (+4 stacks) and assists (+2 stacks) up to a maximum of 25 stacks. There is no time decay on stacks — they persist as long as the game continues and the champion doesn’t die. The only stack loss event is death, which removes 10 stacks regardless of current stack count.

A champion going 25/0 with kills only would need 7 kills to reach max stacks (7 × 4 = 28, capped at 25). A champion primarily getting assists reaches max stacks after 13 assists (13 × 2 = 26, capped at 25). In practice, a mix of kills and assists is the standard path — a 5/0/5 start provides 5×4 + 5×2 = 30 stacks, capped at 25 after the 8th kill/assist combination.

GLORY — Full Stack Mechanics Table

Dark Seal — The Component Path

Dark Seal (350g) is the component for Mejai’s Soulstealer and the entry point for GLORY stack accumulation. It provides +15 AP and +75 HP with the same GLORY passive: +4 stacks per kill, +2 per assist, max 10 stacks on Dark Seal specifically (vs 25 on Mejai’s), −5 stacks on death (vs −10 on Mejai’s). Starting with Dark Seal at 350g enables early stack building with a lower death penalty before committing to the full Mejai’s upgrade.

The critical decision: when to upgrade from Dark Seal to Mejai’s. At 0 stacks, Dark Seal provides 15 AP for 350g — maintaining a Dark Seal for its AP-per-gold on a 0-stack slate is actually better than upgrading (20 AP for 1,500g is worse efficiency than 15 AP for 350g without stacks). The upgrade is justified when stacks are building and the game state supports Mejai’s completion.

Movement Speed at 10+ Stacks

At 10 or more GLORY stacks, Mejai’s grants +10% bonus movement speed. This is a bonus movement speed percentage — it applies multiplicatively with other bonus movement speed sources but is a percentage of bonus MS, not total MS. For most mages running Sorcerer’s Shoes at 60 bonus MS: the effective gain is small in absolute numbers (6 MS from 60 bonus MS). However, on champions with significant bonus MS from items or passives, the percentage amplifies meaningfully.

The MS bonus is primarily relevant for aggressive positioning and chase patterns — mages with 10+ stacks play offensively, and the MS bonus compensates for mage mobility limitations during roam paths, kiting, and approach angles. It also makes Cosmic Drive a natural synergy pair — Cosmic Drive provides significant bonus MS from SPELL DANCE that stacks multiplicatively with Mejai’s 10% bonus.

🗺️ Map Availability & Mode Differences

🎯 When to Build Mejai’s Soulstealer

Mejai’s Soulstealer is a conditional snowball purchase — its value depends entirely on the ability to maintain a low death count over the course of the game. Before building it, answer honestly: can this champion maintain 0-2 deaths through mid-to-late game given the current match state?

✅ Build Mejai’s When:

• Leading the game at 10-15 minutes with kills/assists: the strongest Mejai’s games are the ones where it is purchased when already ahead — 3/0, 4/1, 3/0/3 start means stacks are already accumulating and the item completes an existing snowball rather than initiating one from zero
• Playing a safe backline mage with long range (Lux, Xerath, Orianna): champions who deal damage from 700-1,000+ range and are rarely the primary dive target can accumulate stacks without committing to the risky close-range patterns that lead to deaths
• Enemy team has no reliable dive or assassination pattern: against compositions built on poke and AoE (no Zed, no Akali, no Vi + Malzahar combination), the mage can operate freely and maintain stack count through the mid and late game
• Dark Seal already has 6-10 stacks at completion timing: if the early Dark Seal is already stacked from kills, upgrading to Mejai’s transfers those stacks and immediately pushes the AP total above most early full items

❌ Do NOT Build Mejai’s When:

• Behind or even in gold: Mejai’s at 0 stacks is the worst AP item at 1,500g. A 20 AP + 100 HP item is a waste of a legendary item slot when Shadowflame, Luden’s Tempest, or Rabadon’s Deathcap provide consistent uncapped value
• Against a fed assassin (Zed, Akali, Katarina): a single death resets 10 stacks and likely happens repeatedly against a snowballing assassin. The item actively punishes the exact game state that assassins create — dying often
• When the champion has mechanically unsafe patterns: Ryze, Cassiopeia, and Vladimir require close-range sustained damage. Even skilled players on these champions die more frequently than long-range poke mages — the item’s death penalty compounds with mechanically punishing close-range playstyles
• In ARAM, Nexus Blitz, or Arena: the item is simply disabled. No workaround exists — it will not appear in the shop on these maps

👥 Best Champions for Mejai’s Soulstealer

Mejai’s performs best on safe, long-range, mobile, or burst-one-shot AP champions who can accumulate stacks without dying. The item is particularly strong on champions who operate from maximum range, have escape tools that minimize death risk, or are the win condition of the game and can snowball efficiently.

✅ Ideal Picks

• Lux — 1,075 range Final Spark (R) and 1,300 range Light Binding (Q) allow kills and assists from extreme distances. Lux rarely enters dive range when played correctly. The movement speed from 10+ stacks assists with her naturally limited mobility for repositioning. At 25 stacks, Lux R deals devastating burst damage from full map position.
• Xerath — Maximum range 1,650 unit R (Rite of the Arcane) and 1,100 unit Q (Arcanopulse). Xerath operates from outside standard engagement range entirely — accumulating assists from extreme range with minimal dive risk. His pattern is stack-building through assists from safe positioning rather than kills.
• Orianna — Ball mechanics allow positioning that doesn’t commit her body to danger while landing W (Command: Dissonance) damage assists. Her ultimate Shockwave (R) from distance provides kill participation without close-range exposure. Mejai’s MS bonus improves her ball control positioning.
• Syndra — High-burst mage with strong one-shot potential. Dark Sphere (Q) stacking and Unleashed Power (R) burst allows full HP to 0 combos from backline range. Against squishies, the one-shot pattern accumulates kill stacks rapidly without extended fights.
• Karma — Safe laner with consistent ability damage and mobility from Gathering Fire (P) haste on hits. Karma’s Inspire (E) shield and Focused Resolve (W) tether keep her safe while Soulflare (Mantra-Q) provides burst for kill stacks. The MS from 10+ stacks amplifies Karma’s already-aggressive roam pattern.
• Viktor — Death Ray (E) provides consistent ability damage assists; Chaos Storm (R) applies sustained AoE damage for teamfight stacking. Viktor’s Glorious Evolution augments provide inherent stat improvements alongside Mejai’s — the item compounds well with his late-game scaling identity.
• Veigar — Phenominal Evil passive already stacks AP on ability hits and champion takedowns — Mejai’s GLORY stacks synergize with his existing snowball identity. The infinite AP scaling from both sources means a snowballing Veigar with Mejai’s at 25 stacks reaches AP values that exceed any normal build.

❌ Less Optimal Picks

• Close-range sustained damage mages (Cassiopeia, Ryze, Vladimir): the close-range requirement of these champions‘ primary damage patterns exposes them to dives and assassinations more than long-range backliners. Every death in the mid-range fight costs 10 stacks — the item’s death penalty compounds with already-punishing close-range playstyles. Rabadon’s Deathcap, Void Staff, and Rylai’s Crystal Scepter provide consistent scaling without the stack risk.
• Champions losing lane or behind in the game: a 0/3 mage with empty Mejai’s is holding a 1,500g item providing 20 AP and 100 HP. Selling it and building Shadowflame or Void Staff provides immediate game-relevant stats without the psychological and mechanical burden of managing stacks under pressure.

⚙️ Recommended Build Paths

Lux / Syndra — Snowball Mage Standard Build

1. Dark Seal — First purchase (350g) — GLORY stacking begins immediately; lower death penalty (−5 vs −10) in lane phase
2. Sorcerer’s Shoes — Second purchase — magic penetration from level 9+; 15 flat magic pen compounds with AP scaling in one-shot patterns
3. Mejai’s Soulstealer — Complete from Dark Seal when 6+ stacks AND 1,150g available — stacks transfer; death penalty upgrades to −10; commit to the snowball
4. Shadowflame — Third item — CINDERBLOOM execute magic pen + high base AP; AP amplifies Mejai’s stack value; pen makes 145 AP deal as if it’s 175+ AP through CINDERBLOOM threshold
5. Rabadon’s Deathcap — Fourth item — MAGICAL OPUS 30% AP multiplier; at 25 stacks: 145 AP × 1.30 = 188 effective AP from Mejai’s alone with Deathcap present; total build AP exceeds 600 AP easily
6. Void Staff — Fifth item — 40% magic penetration for tank/MR-building opponents; all ability damage hits harder as enemy MR rises in late game; pen converts Mejai’s raw AP into effective damage more efficiently

Veigar — Infinite Scaling Snowball

7. Dark Seal — First purchase — GLORY + Phenomenal Evil (P) both stack AP from kills; early stacking double-source
8. Luden’s Tempest — First full item — ECHO burst damage on first ability hit per fight; magic pen; mana; AP combines with stack AP ceiling
9. Mejai’s Soulstealer — Second item — by the time Luden’s is complete, Dark Seal should have 6-10 stacks from Veigar’s kill accumulation; upgrade for full 25-stack potential
10. Rabadon’s Deathcap — Third item — MAGICAL OPUS multiplies all AP including Mejai’s stacks + Phenomenal Evil stacks; most impactful single item in the build for AP ceiling
11. Zhonya’s Hourglass — Fourth item — STASIS active for avoiding assassination attempts; the one defensive tool that preserves Mejai’s stacks; a Veigar with Zhonya’s dies significantly less often than without
12. Void Staff — Fifth item — 40% magic pen for late-game MR stacking; pen converts the enormous Veigar AP ceiling into effective damage

⚠️ Stack Management & Risk Assessment

The Death Penalty — Calculating Risk

Every death costs exactly 10 stacks. The practical implication depends on current stack count:

The critical stack threshold is 10 stacks — below 10 you lose the MS bonus entirely. At 10 stacks, a death takes you to 0 and removes both the MS bonus and 50 AP worth of stacks. At 20+ stacks, a single death is painful (50 AP lost) but manageable since 10 remaining stacks still provide 50 AP and retain the MS bonus. This means the safest Mejai’s game state is 20+ stacks where the death penalty, while significant, doesn’t eliminate all accumulated value.

🔗 Key Item Synergies

• Zhonya’s Hourglass — STASIS active prevents death during burst assassination combos. Against Zed R, Talon combo, and single-target assassins who require a 0.7-second combo window, Zhonya’s literally removes the window. A mage who doesn’t die keeps their stacks. The synergy is direct: Zhonya’s Hourglass protects the Mejai’s investment.
• Cosmic Drive — SPELL DANCE grants bonus MS on ability hit — stacks with Mejai’s 10% bonus MS for amplified total movement speed. At 10+ Mejai’s stacks + Cosmic Drive SPELL DANCE active, the MS total enables mid-fight repositioning that close-range mages otherwise can’t execute. Cosmic Drive is the primary movement speed synergy item for stacked Mejai’s mages.
• Rabadon’s Deathcap — MAGICAL OPUS 30% multiplier amplifies all AP including Mejai’s 25-stack AP directly. The 145 AP from Mejai’s at max stacks gets multiplied by 30% alongside the rest of the build. Rabadon’s Deathcap is the core scaling item that makes the Mejai’s AP ceiling meaningful rather than just a raw AP number.
• Shadowflame — CINDERBLOOM magic pen when the target is below 35% HP — execute pattern that scales with the raw AP Mejai’s provides. The combination of Mejai’s AP ceiling + Shadowflame execute pen produces the highest burst damage values available against squishy targets. Shadowflame is typically the first major AP item built alongside or before Mejai’s completion.
• Banshee’s Veil — passive spell-blocking bubble prevents the first ability from an enemy — against assassins who require one ability to set up the kill combo, Banshee’s absorbs the initiating skill and allows the mage to respond. Stack preservation through spell block is more reliable than reaction-time Zhonya’s activation for certain champions. Banshee’s Veil is the anti-poke/anti-assassin defensive option when Zhonya’s STASIS timing is unreliable for the player.

🔄 Similar Items — AP Scaling Family

❌ Common Mistakes & How to Avoid Them

• Buying it early with 0 stacks when behind: Mejai’s at 0 stacks is +20 AP and +100 HP for 1,500 Gold. If the Dark Seal has 0 stacks after 10 minutes, Shadowflame (3,200g), Luden’s Tempest, or Void Staff provide immediately impactful stats without stack dependency. Dark Seal should be sold (at a small loss) rather than upgraded to Mejai’s when the game is going poorly.
• Dying unnecessarily when stacks are in the 10-15 range: the worst scenario is solo-dying to a jungle gank or overextending for a kill that wasn’t guaranteed at 12 stacks — losing the MS bonus and dropping to 2 stacks. Position conservatively at 10-15 stacks until the 20+ stack buffer provides more death tolerance.
• Forgetting that Zhonya’s directly preserves Mejai’s stacks: against assassin compositions, Zhonya’s Hourglass is not just a defensive item — it is a Mejai’s stack insurance policy. A 2.5-second STASIS window on a predictable Zed R is the difference between maintaining 25 stacks and losing 10. Treat Zhonya’s purchase as a Mejai’s synergy, not just a generic defensive pickup.
• Not transferring Dark Seal stacks before buying other items: if the Dark Seal has 8 stacks and gold is available, upgrading to Mejai’s transfers all 8 stacks immediately — don’t buy other items first and reset to 0 by accident. The stack transfer happens only if the Dark Seal is upgraded directly, not if it’s sold and Mejai’s is purchased fresh.
• Trying to play Mejai’s on ARAM or other modes: the item simply does not appear in the shop on ARAM, Nexus Blitz, or Arena. It’s exclusive to SR 5v5. Dark Seal is available on most modes and provides the partial GLORY passive — but the full Mejai’s upgrade path doesn’t exist outside SR 5v5.

FAQ

Q: Does building Mejai’s Soulstealer while ahead always make sense?

A: A: Not automatically. The question is whether the game state will stay ahead for long enough to justify the stack dependency. A 4/0 lead at 12 minutes on a long-range mage in a slow paced game — yes, Mejai’s is correct. A 4/0 lead at 12 minutes against a diving composition with multiple assassins who will target you specifically — building Zhonya’s Hourglass and Shadowflame for consistent pressure is more reliable than the Mejai’s snowball that collapses the moment one dive lands. Evaluate enemy dive threat, not just your own kill count.

Q: What happens to Dark Seal stacks when I upgrade to Mejai’s?

A: A: All stacks from Dark Seal are fully preserved on upgrade. If Dark Seal has 9 stacks when you complete Mejai’s with the 1,150g combine, Mejai’s starts at 9 stacks (45 AP from stacks immediately). The only way to lose Dark Seal stacks before upgrading is through deaths — which cost 5 stacks each on Dark Seal vs 10 on Mejai’s. This lower death penalty is one reason to delay upgrading if the early game involves trading deaths.

Q: Is Mejai’s Soulstealer worth buying as a support?

A: Conditionally yes — AP supports who get consistent assists (Lulu, Karma, Soraka in damage-flex builds) can stack GLORY through assist gold while maintaining a safe backline position. The issue for most supports is that assists grant only +2 stacks vs +4 for kills — reaching max stacks requires 13 pure assists, and the AP benefit primarily helps AP-scaling ability supports rather than utility-focused enchanters. Damage-oriented AP supports like Karma or Seraphine who can both deal damage and stay safe are the best support candidates for the item.

Q: Why is Mejai’s disabled on ARAM, Nexus Blitz, and Arena?

A: A: The design intent is to preserve Mejai’s as a high-risk, high-reward SR 5v5 snowball item specifically. On ARAM, kill rates are dramatically higher and death rates are dramatically higher — the item would either trivially stack or instantly reset, creating inconsistent and potentially frustrating interactions. The map design philosophy for each mode determines which items are appropriate, and Mejai’s risk/reward balance is only intended for SR 5v5’s longer game length and revival system.

Q: How does the 10% bonus movement speed interact with other MS items?

A: The +10% bonus movement speed from 10+ GLORY stacks applies as a percentage of bonus movement speed, not base MS. It stacks multiplicatively with other bonus MS percentage sources. Cosmic Drive‚s SPELL DANCE bonus MS and Mejai’s 10% compound on the same bonus MS pool — a champion with 100 bonus MS from items gains +10 MS from Mejai’s 10%, but with Cosmic Drive’s significant bonus MS active, the 10% applies to a much larger pool. For most mages with only Sorcerer’s Shoes as their MS source, the practical gain from Mejai’s 10% is modest; on MS-heavy builds it becomes more significant.