Kog'Maw vs Karthus — Bot Lane (ADC) Matchup Guide

How to win lane as Kog'Maw against Karthus · 59.09% win rate over 264 Emerald+ games · Updated 2026-07-27

Verdict: Winnable despite the lane — Karthus owns 6 of the 7 game windows to Kog'Maw's 1, yet the win rate favours Kog'Maw: survive their windows and the game is yours. Kog'Maw wins 59.09% of games vs Karthus in bot lane (adc) (264 Emerald+ games analysed).

Favour timeline — who owns each window

StageFavouredWhy
Level 1KarthusLevel 1 is Karthus's: Q Lay Waste pokes and contests CS from range you can't answer.
Level 2KarthusLevel 2 stays Karthus's as Q poke plus E zoning keep you off the wave.
Level 3KarthusLevel 3 is Karthus's because Defile zones your immobile body off farm.
Levels 4-5KarthusLevels 4-5 remain Karthus's on accumulating Q poke and E pressure.
Level 6KarthusLevel 6 is Karthus's since Requiem threatens to execute you after any trade.
First itemKarthusFirst item is Karthus's, one AP item makes his Q poke keep you pinned.
Two+ itemsKog'MawTwo-plus items is Kog'Maw's: uncapped W range and %max-HP shred him from outside Defile.

Early game (levels 1–5)

Karthus controls levels 1-2. His Q Lay Waste lets him contest CS and poke you at range without ever stepping up, and you're the immobile short-range one who can't punish him for it. Last-hit behind minions, respect that repeated Q hits add up fast, and don't walk into E Defile range for a single caster minion. Take safe farm and scale.

Read the rest of this matchup

The full Kog'Maw vs Karthus report continues with the mid-game plan, the late-game and teamfight plan, every power spike to play around, and the win conditions for both sides — plus cooldown tracking and the live enemy-jungle tracker inside the app.

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Related guides

Playing the other side? Karthus vs Kog'Maw guide →
All Kog'Maw bot lane (adc) matchups →