1Lil' Extra Help
GoldGain 150 (melee) / 100 (ranged) Attack Range and 75% (melee) / 40% (ranged) Attack Speed during your duration.
BARAM: Mayhem · Patch 16.20Kog'MawARAM: Mayhem build
the Mouth of the Abyss
- ARAM: Mayhem rank
- #66 / 173
- Top augment
- Lil' Extra Help
Tier B
Scopier Weapons · Critical Missile
Kog'Maw best augments
All augments →1
2Scopier Weapons
GoldGain 150 (melee) / 100 (ranged) Attack Range.
3Critical Missile
GoldWhen you Critically Strike, fire missiles dealing magic damage.
Gain 
25% Crit chance.
4Critical Rhythm
GoldYour basic Attack stacks Attack Speed on Critical Strikes.
Gain 25% Crit chance.
5Deft
SilverGain 
60% Attack Speed.
6Dual Wield
PrismaticAttacks fire a bolt that applies 
On-Hit effects at reduced strength. Gain 10% total Attack Speed.
7Marksmage
GoldYour Attacks deal additional physical damage equal to 75% Ability Power.
8Scopiest Weapons
PrismaticGain 250 (melee) / 150 (ranged) Attack Range.
9Firebrand
GoldYour Attacks apply an infinitely stacking Burn On-Hit, dealing damage over time.
10Typhoon
SilverYour Attacks shoot a missile at an additional target, dealing reduced damage and applying On-Hit effects.
Augment order comes from OP.GG. Runes, items and skill order below come from regular ARAM games on the same map.
Recommended Kog'Maw build
Most played and most reliable choicesRunes
Spells
Skill priority
W
Q
EStart
Boots
Core
Kog'Maw runes
50.3% WR39.6% pick35,916 games
Precision
Domination
52.2% WR23.1% pick20,998 games
47.9% WR9.2% pick8,319 games
50.1% WR1.6% pick1,460 games
Kog'Maw skill order
52.0% WR24.9% pick17,341 games
Q123456789101112131415W123456789101112131415E123456789101112131415
R123456789101112131415Kog'Maw summoner spells
50.9% WR48.9% pick43,339 games
49.8% WR12.7% pick11,221 games
Power curve
Strongest early, falls off later
51.5
49.3
47.3
46.7
50.7
Win rate (%) by game length in minutes. Dashed line = 50%.
Kog'Maw items
First three completed items51.4%
9.0% · 6,883 games
53.2%
4.2% · 3,175 games
51.9%
3.1% · 2,375 games
51.4%
2.5% · 1,932 games
54.1%
2.3% · 1,785 games
Start48.9%
25.2% · 22,134 games
Start53.0%
15.3% · 13,425 games
Boots49.4%
62.2% · 47,819 games
Boots54.2%
30.6% · 23,498 games
Boots54.9%
2.7% · 2,045 games
Kog'Maw situational items
How often each item ends up in the final buildBlade of The Ruined King53.8% · 49.8%Guinsoo's Rageblade46.5% · 50.0%Runaan's Hurricane44.2% · 50.3%
Malignance25.6% · 53.4%
Terminus23.8% · 50.7%
Liandry's Torment20.1% · 53.9%
Seraph's Embrace19.4% · 54.6%
Wit's End18.6% · 49.6%
Kraken Slayer17.9% · 49.1%
Shadowflame15.8% · 53.4%
Luden's Echo13.9% · 55.3%
Rabadon's Deathcap10.8% · 53.7%
Tear of the Goddess4.8% · 52.9%
Jak'Sho, The Protean4.5% · 48.9%
Blackfire Torch3.8% · 55.8%
Rylai's Crystal Scepter3.7% · 53.6%Kog'Maw abilities
PassiveIcathian Surprise
4 seconds after dying, Kogmaw explodes, dealing true damage to surrounding enemies.
QCaustic 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: 7s · Cost: 40WBio-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: 17s · Cost: 40EVoid 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: 12s · Cost: 40/55/70/85/100RLiving 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: 2/1.5/1s · Cost: 40