MacroMind matchup data — real ranked games, not opinions
Kai'Sa vs Heimerdinger
How often does Kai'Sa beat Heimerdinger in ADC?
Kai'Sa into Heimerdinger in ADC: 45% observed win rate across 135 ranked games. Counted from real matches, and every number here shows its sample size.
By 15 minutes the median game has Kai'Sa behind by 509 gold.
Does Kai'Sa counter Heimerdinger?
Too close for a counter call: Kai'Sa sits at 45% over 135 games, inside the noise band. On this sample neither pick counters the other — the swing lives in the conditions below, so play the side you know better.
Beating Heimerdinger: the Kai'Sa game plan
A 300-gold lead at 10:00 puts Kai'Sa at 65% across 57 games. Flip the lead and Kai'Sa falls to 31% across 78.
| The spot | Win rate | Games |
|---|---|---|
| 300 gold up at 10:00 | 65% | 57 |
| 300 gold down at 10:00 | 31% | 78 |
| First blood | 55% | 86 |
| +kills at 10:00 | 66% | 50 |
| +CS at 10:00 | 59% | 54 |
| 0 deaths at 10:00 | 60% | 40 |
Someone usually dies here around 6:39 in the median game, and level 6 lands near 7:42. Until your spike is online, respect the all-in.
Kai'Sa's ADC build, with receipts
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 16.1-16.12.
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.