MacroMind matchup data — real ranked games, not opinions
Kai'Sa vs Samira
In ADC, Kai'Sa wins 47% against Samira across 4,172 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 Kai'Sa behind by 464 gold.
Does Kai'Sa counter Samira?
No. This one runs the other way: Samira takes 53% of 4,172 ranked ADC games, and the gap clears the noise band.
How to beat Samira as Kai'Sa
Turn the early game into gold: 300 up at 10:00 runs this matchup at 63% over 1,610 games; 300 behind drops it to 37% over 2,561.
The median first death in this lane comes at 4:19; the level 6 spike lands around 7:40. Respect the all-in window until your spike is online.