MacroMind matchup data: real ranked games, not opinions
Kai'Sa vs Cassiopeia
How often does Kai'Sa beat Cassiopeia in ADC?
Kai'Sa into Cassiopeia in ADC: 45% observed win rate across 247 ranked games.
Global ranked sample: games from every region and every rank pooled together, not one server's stats. Data runs through patch 26.12; curves updated 2026-08-07.
By 15 minutes the median game has Kai'Sa ahead by 79 gold.
Kai'Sa at 15:00
- Gold: +79
- CS: -4
- XP: -85
Typical gap to Cassiopeia, from 245 games that reached 15:00.
Does Kai'Sa counter Cassiopeia?
No counter here: Kai'Sa sits at 45% over 247 games. The swing lives in the spots below, so play the side you know better and chase the row that moves the number the most in this lane, then hold that lead through the first back.
Beating Cassiopeia: the Kai'Sa game plan
A gold lead at 10:00 puts Kai'Sa at 52% across 117 games. Flip the lead and Kai'Sa falls to 39% across 130.
| The spot | Win rate | Games |
|---|---|---|
| Ahead in gold at 10:00 | 52% | 117 |
| Behind in gold at 10:00 | 39% | 130 |
| First blood | 49% | 137 |
| +kills at 10:00 | 53% | 93 |
| +CS at 10:00 | 50% | 99 |
Someone usually dies here around 4:25 in the median game, and level 6 lands near 7:38. Until your spike is online, respect the all-in.
Kai'Sa's ADC build, with receipts
Into Cassiopeia specifically, Kai'Sa finishes Kraken Slayer first most often: 43.1% over 72 games of this matchup.
The most-finished Kai'Sa core is Kraken Slayer, Guinsoo's Rageblade, Dusk and Dawn: 53.5% across 26,866 games when all three got done. All matchups, patches 26.1-26.12.
Most games start Doran's Blade + Health Potion; the first finished item is usually Kraken Slayer (83,293 games).
Skill plan: Kai'Sa players max Q first and take Q at level 1.