

Karthus Counters Patch 15.10: Best and Worst Picks against Karthus
Find the best Karthus counters for Jungle using win rate data on LoLTheory. Beat Karthus in Champion Select during LoL Season 15 Patch 15.10.
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Best Picks vs Karthus
Champions with high win rates against Karthus across all game phases. Listed by win rate performance in Platinum ranked matches.
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Worst Picks vs Karthus
Champions that struggle against Karthus throughout the game. Ranked by lowest win rates when facing Karthus in Platinum matches.
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All
Interrupt Karthus's R with crowd control during its 3-second channel — this cancels the ability entirely and puts it on a long cooldown.
Team Fight Skirmish
After killing Karthus, immediately move away from his corpse — his passive allows him to cast spells for 7 seconds after death without mana costs.
Basic Team Fight Skirmish
Stay near allies or minions when fighting Karthus — his Q deals double damage (80-232 + 70% AP instead of 40-116 + 35% AP) when hitting only one target.
Lane Phase Skirmish
When a beam of light appears above you, Karthus is channeling his R — use shields, healing, or move to safety within the 3-second window before damage applies.
Basic Lane Phase Late Game
Invade Karthus's jungle early — he is vulnerable during his first clear with slow movement and no escapes.
Lane Phase
Track Karthus's position during objective fights — even if he's not present, his R can influence the outcome from anywhere on the map.
Late Game Team Fight
Steal Karthus's blue buff when possible — his jungle clear and overall effectiveness are heavily dependent on mana.
Lane Phase