Berserker's Greaves
Blade of the Ruined King
Wit's End
Nashor's Tooth
Guinsoo's Rageblade
Trinity Force
Doran's Blade + 
Health PotionRunes Attack Speed marks · Flat Armor seals · Magic Resist glyphs · Attack Speed quintsBio-Arcane Barrage adds bonus range and percent-max-health magic damage to every auto, which stacks multiplicatively with Blade of the Ruined King's own percent-health hit.
Show the damage math
| Ability | How it is calculated | Raw | After resists |
|---|---|---|---|
| Q Caustic Spittle rank 5 | 260 base + 0.7 × 130 AP | 351 | 239 −32% after MR |
| W Bio-Arcane Barrage rank 5?review | 139 per empowered basic attack | 139 | 94 −32% after MR |
| AA Auto-attack | 246.5 per hit × 2.20 attacks/sec | 234 / 362 | 543 dps |
Combo 454 + 3.0 s autos 1,628 = 2,082, 24% of target HP.
Only the QW rotation is counted.
On-hit Kog'Maw in League Classic
What is the On-hit Kog'Maw build in League Classic?
Berserker's Greaves, Blade of the Ruined King, Wit's End, Nashor's Tooth, Guinsoo's Rageblade, Trinity Force. Skill order W > Q > E > R, masteries 21/9/0, summoner spells Flash + Heal, starting Doran's Blade + Health Potion.
Is On-hit Kog'Maw better than AD Kog'Maw?
In our Season 3 damage simulator On-hit Kog'Maw does 2,082 combo-plus-autos damage at level 18 against 1900 HP / 75 armour / 50 MR, which is +13% versus AD Kog'Maw, with 3,704 effective HP (+2%). That is a damage comparison, not a verdict: Against dives. Every point of it requires standing still at 600 range with no escape button of any kind, and Kog'Maw is the slowest carry in the game.
When should I play On-hit Kog'Maw?
Against tanks and stacked-health teams. This is the highest sustained damage against a frontline available anywhere in the mode. Bio-Arcane Barrage adds bonus range and percent-max-health magic damage to every auto, which stacks multiplicatively with Blade of the Ruined King's own percent-health hit.