Kog'Maw Build
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. Though not inherently evil, Kog'Maw's beguiling naiveté is dangerous, as it often precedes a feeding frenzy—not for sustenance, but to satisfy its unending curiosity.
The most played Kog'Maw Mid build on patch 26.21 runs Stormraider's Surge with Manaflow Band, Absolute Focus and Gathering Storm, plus Presence of Mind and Cut Down from the secondary tree. Take Flash and Ghost. Start with Doran's Ring and Health Potion, then build Dusk and Dawn, Spellslinger's Shoes and Shadowflame, followed by Rabadon's Deathcap, Zhonya's Hourglass and Void Staff. Max E (Void Ooze) first, then Q (Caustic Spittle), then W (Bio-Arcane Barrage). It has a 50.8% win rate and a 0.5% pick rate.
Runes
Primary
Stormraider's Surge
Dealing 25% of a champion's maximum health grants a burst of MS and Slow Resist.
Stormraider's Surge
Dealing 25% of a champion's maximum health within 3s grants 48% Move Speed and 50% Slow Resistance for 4s. Move Speed is 75% effective for ranged champions. Cooldown: 20s - 10s
Manaflow Band
Hitting an enemy champion with an ability permanently increases your maximum mana by 25, up to 250 mana. After reaching 250 bonus mana, restore 1% of your missing mana every 5 seconds.
Manaflow Band
Hitting an enemy champion with an ability permanently increases your maximum mana by 25, up to 250 mana. After reaching 250 bonus mana, restore 1% of your missing mana every 5 seconds. Cooldown: 15 seconds
Absolute Focus
While above 70% health, gain extra adaptive damage.
Absolute Focus
While above 70% health, gain an adaptive bonus of up to 18 Attack Damage or 30 Ability Power (based on level). Grants 1.8 Attack Damage or 3 Ability Power at level 1.
Gathering Storm
Gain increasing amounts of AD or AP, adaptive over the course of the game.
Gathering Storm
Every 10 min gain AP or AD, adaptive. 10 min: + 8 AP or 5 AD 20 min: + 24 AP or 14 AD 30 min: + 48 AP or 29 AD 40 min: + 80 AP or 48 AD 50 min: + 120 AP or 72 AD 60 min: + 168 AP or 101 AD etc...
Secondary
Presence of Mind
Restore a small amount of mana or energy when damaging an enemy champion. Takedowns restore mana or energy.
Presence of Mind
Damaging an enemy champion restores 6-50 (80% for ranged) mana or 6 energy. Takedowns restore 15% of your maximum mana or energy. Cooldown for damage restoration: 8s
Cut Down
Deal more damage to high health enemy champions.
Cut Down
Deal 8% more damage to champions who have more than 60% health.
Summoner Spells
Flash
Cooldown 300s
Flash
Cooldown 300s
Teleports you a short distance toward your cursor.
Ghost
Cooldown 240s
Ghost
Cooldown 240s
Gain Move Speed and ignore unit collision for the duration.
Skill Priority
EVoid Ooze
Cooldown 12s · 40/55/70/85/100 Mana
Kog'Maw launches a peculiar ooze which damages all enemies it passes through and leaves a trail which slows enemies who stand on it.
QCaustic Spittle
Cooldown 7s · 40 Mana
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.
WBio-Arcane Barrage
Cooldown 17s · 40 Mana
Kog'Maw's attacks gain range and deal a percent of the target's maximum health as magic damage %i:OnHit% On-Hit.
Item Build
Full build 17,150gStarting Items
Doran's Ring
400g
Doran's Ring
- 18 Ability Power
- 90 Health
Drain Restore 1 Mana every second, increased to 2 Mana per second for 5 seconds after dealing damage to an enemy champion. If you can't gain Mana, heal for 45% of this value instead. Helping Hand Attacks deal 5 bonus physical damage to minions.
×2Health Potion
2 × 50g
Health Potion
Consume Restores 120 Health over 15 seconds.
Core Build
1Dusk and Dawn
3,100g300 HP · 60 AP · 20 AH · 20% AS
Spellblade
Dusk and Dawn
3,100g- 300 Health
- 60 Ability Power
- 20 Ability Haste
- 20% Attack Speed
Spellblade (0s) After using an Ability, your next Attack deals bonus magic damage and heals you for On-Hit and then applies On-Hit effects an additional time.
2Spellslinger's Shoes
1,100g20 Magic Pen · 8% Magic Pen · 45 MS
Spellslinger's Shoes
1,100g- 20 Magic Penetration
- 8% Magic Penetration
- 45 Move Speed
3Shadowflame
3,200g110 AP · 15 Magic Pen
Cinderbloom
Shadowflame
3,200g- 110 Ability Power
- 15 Magic Penetration
Cinderbloom Magic and true damage Critically Strike enemies below 40% Health, dealing 20% increased damage.
4Rabadon's Deathcap
3,500g130 AP
Magical Opus
Rabadon's Deathcap
3,500g- 130 Ability Power
Magical Opus Increases your total Ability Power by 30%.
5Zhonya's Hourglass
3,250g105 AP · 50 Armor
Time Stop
Zhonya's Hourglass
3,250g- 105 Ability Power
- 50 Armor
Time Stop Enter Stasis for 2.5 seconds.
6Void Staff
3,000g95 AP · 40% Magic Pen
Void Staff
3,000g- 95 Ability Power
- 40% Magic Penetration
Increases magic damage
Abilities & Skill Path
Icathian Surprise
4 seconds after dying, Kogmaw explodes, dealing true damage to surrounding enemies.
QCaustic Spittle
Cooldown 7s · 40 Mana
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.
WBio-Arcane Barrage
Cooldown 17s · 40 Mana
Kog'Maw's attacks gain range and deal a percent of the target's maximum health as magic damage %i:OnHit% On-Hit.
EVoid Ooze
Cooldown 12s · 40/55/70/85/100 Mana
Kog'Maw launches a peculiar ooze which damages all enemies it passes through and leaves a trail which slows enemies who stand on it.
RLiving Artillery
Cooldown 2/1.5/1s · 40 Mana
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.