

Kai’Sa vs Veigar Counter Pick
Matchup Summary
What the Data Means
The evidence here is modest at 746 games on patch 16.13.1, so the 45.3% win rate carries more uncertainty than a five-figure dataset would. The Hard rating still lines up with what the two kits do to each other.
Veigar is a mage occupying a marksman’s seat, and every stat reflects that. His 550 attack range edges out Kai’Sa’s 525, his 340 movement speed beats her 335, and his 580 base health scales to 2,416 by level 18, higher than her 2,374. Base armor of 18 is genuinely low and is the opening worth attacking, but Phenomenal Evil Power converts every landed spell into permanent ability power, so a passive early phase hands him a scaling engine at no cost.
Two abilities decide the result. Event Horizon stuns anything crossing its edge, and Kai’Sa’s whole pattern of stepping in with Killer Instinct walks straight into it. Primordial Burst then scales with missing health, so surviving the opening burst at low health is not survival at all. Practical adjustments: magic resistance before the second item rather than after, because a flat 30 is no answer to that damage profile, and Void Seeker used to trade from range where the cage cannot be placed usefully. Kai’Sa’s physical damage also runs into 106.4 armor by level 18, so penetration eventually earns a slot. The Veigar profile details the stacking conditions behind his passive.
FAQ
No — current data marks this as a counter matchup: Veigar has the statistical edge. Kai'Sa wins 45.3% of the recorded games.
45.3% from Kai'Sa's perspective, measured on patch 16.13.1.
746 ranked games at Emerald rank and above, across all regions.
The current Kai'Sa build — items, runes and skill order from the same data set — is on the Kai'Sa build page.