MacroMind matchup data — real ranked games, not opinions
Karthus vs Naafiri
In Jungle, Karthus wins 46% against Naafiri across 303 observed ranked games. This is an observed win rate shown with its sample size, not a prediction or a guaranteed counter.
By 15 minutes the median game has Karthus ahead by 2 gold.
Does Karthus counter Naafiri?
The numbers call it close: 46% for Karthus over 303 games, inside the noise band. Pick the side you play better.
How to beat Naafiri as Karthus
Turn the early game into gold: 300 up at 10:00 runs this matchup at 55% over 148 games; 300 behind drops it to 37% over 155.
The median first death in this lane comes at 5:29; the level 6 spike lands around 6:45. Respect the all-in window until your spike is online.