Marksman

Kog'Maw

The Mouth of the Abyss

Belched forth from a rotting Void incursion deep in the wastelands of Icathia, Kog'Maw is an inquisitive yet putrid creature with a caustic, gaping mouth. This particular Void-spawn needs to gnaw and drool on anything within reach to truly understand it.Read the full story on Riot's Universe site

See Kog'Maw guides Write a guide for Kog'Maw

P
Icathian Surprise
Q
Caustic Spittle
W
Bio-Arcane Barrage
E
Void Ooze
R
Living Artillery

Kog'Maw

Overview

On patch 16.21, Kog'Maw is rated B tier in the bot lane, winning 54.4% of 1,937 ranked games with a 2% pick rate. The most successful build this patch runs Press the Attack with Flash and Ghost and builds Guinsoo's Rageblade, Blade of The Ruined King, Runaan's Hurricane, and Berserker's Greaves.

Kog'Maw struggles most against Samira (45.3%), Twitch (46%), and Jinx (46.3%) and does best against Xayah (76.7%), Kalista (70%), and Ezreal (68.8%).

Ranked solo/duo · patch 16.21 · 1,937 games · updated Nov 1, 2026 · How we calculate

54.4%

Win rate

Pick rate

1.9K

Games

16.21

Patch

Playing as Kog'Maw

Kog'Maw can outrange most champions with his Bio-Arcane Barrage ability.
Use Void Ooze to set up a perfect Living Artillery.
Make the most out of your Icathian Surprise.

Playing against Kog'Maw

Kog'Maw doesn't have a good escape ability, so he is especially prone to ganks.
Run away from Kog'Maw after he dies!!!!
The range on Living Artillery increases each rank.
Bio-Arcane Barrage allows Kog'Maw to kill Baron Nashor extremely early. It can be valuable to ward Nashor when Kog'Maw completes his Blade of the Ruined King.

Guides

See all

Be the first to share a guide.

Write a guide

Matchups

All Kog'Maw matchups

Strong against

Xayah76.7%30
Kalista70.0%30
Ezreal68.8%77
Yasuo66.7%27
Tristana62.4%93

Weak against

Samira45.3%86
Twitch46.0%87
Jinx46.3%136
Katarina47.8%23
Ashe51.8%56

Abilities

P
Icathian Surprise
4 seconds after dying, Kogmaw explodes, dealing true damage to surrounding enemies.
Q
Caustic Spittle
Kog'Maw launches a corrosive projectile which deals magic damage and corrodes the target's armor and magic resist for a short time. Kog'Maw also gains additional attack speed.
Cooldown: 7Cost: 40Range: 1175
W
Bio-Arcane Barrage
Kog'Maw's attacks gain range and deal a percent of the target's maximum health as magic damage %i:OnHit% On-Hit.
Cooldown: 17Cost: 40Range: 530
E
Void Ooze
Kog'Maw launches a peculiar ooze which damages all enemies it passes through and leaves a trail which slows enemies who stand on it.
Cooldown: 12Cost: 40/55/70/85/100Range: 1200
R
Living Artillery
Kog'Maw fires an artillery shell at a great distance dealing magic damage (increased significantly on low health enemies) and revealing non-stealthed targets. Additionally, multiple Living Artilleries in a short period of time cause them to cost additional Mana.
Cooldown: 2/1.5/1Cost: 40Range: 1300/1550/1800