Champions
Displayed data version: 16.19.1 · Patch 26.19
Latest attempt: No changes · Sep 28, 2026, 2:55 PM JST
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This page uses a pinned Data Dragon snapshot. It is not a verification of every in-game interaction or hotfix.
Stats and stacks calculate the state you enter. Nine outputs that cannot be derived from the source require in-game values. Special copied or possessed recasts and transfer restrictions are outside full simulation coverage.
This catalog covers normal Summoner’s Rift. Excluded does not mean removed from the game. The classification and its source are listed below.
Content language: English
the Mouth of the Abyss
Select forms, weapons or follow-up abilities. Empowered and evolved effects also appear in the ability descriptions.
Variable valuesScaling & formulas
For 4 seconds after dying, Kog'Maw can continue to move, can move through units, and gains 10% Move Speed, increasing to 50% Move Speed over the duration. At the end of the duration, he explodes and deals 140（140–650 (Lv1–18)） true damage to nearby enemies.
Passive: Kog'Maw gains 5% Attack Speed.
Active: Kog'Maw vomits a corrosive projectile that deals (80 + 90% Ability power) magic damage to the first enemy hit and shreds 16% Armor and Magic Resist for 4 seconds.
Kog'Maw gains 130 Attack Range and his Attacks deal an additional (3 + 0.015 × Ability power)% max Health magic damage On-Hit for 8 seconds.
Kog'Maw spits bile, dealing (70 + 65% Ability power) magic damage and leaving a trail of ooze for 3 seconds. Enemies in the ooze are Slowed by 40%.
Kog'Maw shoots acid at an area, dealing (100 + 35% Ability power + 75% Bonus attack damage) plus 0.83333% per 1% missing Health magic damage and revealing enemies hit for 2 seconds. Enemies below 40% Health instead take (200 + 70% Ability power + 150% Bonus attack damage) magic damage.
Subsequent shots within 8 seconds cost an additional 40 Mana (max: 400 Mana).