Upon death, Kog’Maw continues moving, gaining Move Speed for a brief time. After a short period Kog’Maw explodes, dealing True Damage to nearby enemies.
1
CAUSTIC SPITTLE
Kog'Maw launches a corrosive projectile which deals Magic Damage and weakens the target's Armor and Magic Resist for a short time.
2
BIO-ARCANE BARRAGE
Kog'Maw's basic attacks gain range and deal a percent of the target's maximum Health as Magic Damage.
3
VOID OOZE
Kog'Maw launches ooze in target direction damaging all enemies it passes through and leaves a trail slowing enemies.
Ult
LIVING ARTILLERY
Passive: Kog’Maw gains Attack Speed. Kog'Maw fires acid in area dealing Magic Damage to and revealing enemies hit. Damage is increased when targeting low Health enemies. Additionally, multiple Living Artilleries in a short period of time cause them to cost additional Mana.
Ability descriptions from the official Wild Rift website.
This page is for League of Legends: Wild Rift (the mobile game), not League of Legends on PC. A Japanese version with guides and matchup notes is available: 日本語版.