Kog'Maw is a marksman and mage champion in League Classic. Find the recommended setup with full item build, summoner spells, ability priority, masteries, runes, and community builds.
Kog'Maw Builds
Kog'Maw ADC
Starting Items
Full Build
- Summoner Spells
- Ability Priority
Bio-Arcane Barrage (W) › 
Caustic Spittle (Q) › 
Void Ooze (E)
- Runes
- 9×
Mark of Attack Damage9× 
Seal of Armor9× 
Glyph of Magic Resist3× 
Quintessence of Life Steal - Masteries
Offense: 21
Defense: 9
Utility: 0
Community Kog'Maw Builds
Kog'Maw in League Classic
What Changed in Classic
- Caustic Spittle (Q) is point and click
Kog'Maw Abilities
Icathian Surprise
PPASSIVE: Upon dying, Kog'Maw starts a chain reaction in his body which causes him to detonate after 4 seconds; dealing magic damage to surrounding enemies.
Caustic Spittle
QPassive: Kog'Maw gains 10 / 15 / 20 / 25 / 30% Attack Speed.
Active: Kog'Maw vomits a corrosive projectile that deals 60 / 110 / 160 / 210 / 260 (+70% AP) magic damage to the first enemy hit and shreds 5 / 10 / 15 / 20 / 25 Armor and Magic Resist for 4 seconds.
Bio-Arcane Barrage
WACTIVE: Kog'Maw gains 130 / 150 / 170 / 190 / 210 Attack Range and his Attacks deal an additional 200% / 3% / 4% / 5% / 6% (+1% AP) max Health magic damage On-Hit for 8 seconds.
Void Ooze
EACTIVE: Kog'Maw spits bile, dealing 60 / 110 / 160 / 210 / 260 (+70% AP) magic damage and leaves a trail of ooze for 3 seconds. Enemies in the ooze are Slowed by 20 / 28 / 36 / 44 / 52%.
Living Artillery
RACTIVE: Kog'Maw shoots acid from a great distance that lands shortly after launch. Deals 80 / 120 / 160 (+30% AP) (+50% AD) magic damage , increased to 30% AP (+50% AD) magic damage to Champions and reveals enemies for 4 seconds.
Subsequent artillery shots within 6 seconds cost 40 additional Mana (max: 400 Mana).