Kog'Maw splash art
Patch 26.20Arena trios · updated Oct 7, 2026

Kog'Maw Arena Build

Kog'Maw, the Mouth of the Abyss, is a ranged marksman and mage champion. In fights Kog'Maw is a fragile champion who deals mixed physical and magic damage through sustained attacks. Here are the augments Kog'Maw players take most, the Prismatic items worth grabbing and the core build on patch 26.20.

Arena tier
Strong, reliable picks
Kog'Maw games this patch
17,811
Skill max
WQE

Quick Answer for Patch 26.20

  1. Dual Wield

    Prismatic

    Gain 20% total Attack Speed.

    Why on Kog'Maw

    Bio-Arcane Barrage (W) adds max Health magic damage to every attack, so extra Attack Speed on top of Caustic Spittle's (Q) passive means more max Health hits per second.

  2. Lightning Strikes

    Gold

    Gain 20% total Attack Speed.

    Why on Kog'Maw

    Bio-Arcane Barrage (W) turns each attack into a max Health damage hit, so 20% more Attack Speed directly speeds up how fast you shred tanks and frontliners.

  3. Twice Thrice

    Gold

In game, Hexgate puts a badge under every augment card you are offered, with how often Kog'Maw players take it.

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Based on 17,811 Kog'Maw games in Arena on patch 26.20. Augments and items are ordered by how often Kog'Maw players take them; the bars compare each one with the most taken.

Best Augments for Kog'Maw by Rarity

Augment offers come in Silver, Gold and Prismatic. These are the cards Kog'Maw players take most at each rarity, most taken first.

Prismatic augments

  1. Dual Wield
  2. Tap Dancer
  3. Fan the Hammer
  4. Scopiest Weapons

Gold augments

  1. Lightning Strikes
  2. Twice Thrice
  3. Marksmage
  4. Firebrand

Silver augments

  1. Deft
  2. Light 'em Up!

Best Prismatic Items for Kog'Maw

The Prismatic items Kog'Maw players pick most often from the offer, most picked first.

  1. Reaper's Toll
  2. Diamond-Tipped Spear
  3. Darksteel Talons
  4. Hamstringer
  5. Hexbolt Companion
  6. Fulmination

Kog'Maw Arena Build

Boots to start, then the items Kog'Maw players build most often in Arena, most built first. Adapt the order to the lobby: every other team is an opponent.

Starting boots

  • Berserker's Greaves
  • Sorcerer's Shoes

Core items

  1. Guinsoo's Rageblade
  2. Blade of The Ruined King
  3. Terminus
  4. Nashor's Tooth
  5. Runaan's Hurricane
  6. Kraken Slayer

Kog'Maw Skill Order

The order Kog'Maw players level their abilities in most often: max Bio-Arcane Barrage (W) first, then Caustic Spittle (Q), and take Living Artillery (R) whenever you can.

  1. WBio-Arcane Barrage
  2. QCaustic Spittle
  3. EVoid Ooze
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RRR

FAQ

What are the best augments for Kog'Maw in Arena?

On patch 26.20 Kog'Maw players take Dual Wield, Lightning Strikes and Twice Thrice most often.

What is the best Prismatic item for Kog'Maw?

The Prismatic items Kog'Maw players pick most are Reaper's Toll, Diamond-Tipped Spear and Darksteel Talons.

What should Kog'Maw build in Arena?

Start with Berserker's Greaves, then the items Kog'Maw players build most: Guinsoo's Rageblade, Blade of The Ruined King and Terminus. Adapt the rest to the lobby.

What is the best skill order for Kog'Maw in Arena?

Max Bio-Arcane Barrage (W) first, then Caustic Spittle (Q), and level Living Artillery (R) whenever you can.

Is Kog'Maw good in Arena?

On patch 26.20 Kog'Maw is A tier in the Arena tier list: strong, reliable picks.

More A Tier Champions

Champion names, art, items and abilities: Riot Games Data Dragon. Augment names, art and text: the game files. Hexgate is not endorsed by Riot Games.