

Sejuani vs Quinn Counter Pick
Matchup Summary
What the Data Means
The sample deserves the first word: a 139-game record on patch 16.13.1 is thin, so the 56.8% Sejuani posts reads as a direction of travel rather than a settled figure. Easy is the grade attached to it, and the mechanics behind that grade stay stable even where the sample does not.
Structurally the reason is straightforward. Quinn attacks from 525 units against Sejuani’s 150, and Harrier rewards her first attack on each marked target, so the opening seconds belong to her. What she cannot do is absorb a connection. Her 565 base health, 28 armor and 30 magic resistance grow to 2,384 and 107.9, and her 330 movement speed is the slower of the two. Her escapes are Vault, which leaps off the target after striking it, and Behind Enemy Lines, a travel state that has to be started before the trouble arrives.
Sejuani’s tools all convert proximity into control: Arctic Assault knocks up the first champion it strikes, Winter’s Wrath slows and applies Frost, and Permafrost stuns once the stacks are full. Blinding Assault hinders vision, a counter aimed at champions who rely on basic attacks, while Sejuani deals mixed damage that comes mostly from abilities. Quinn’s physical profile makes armor the obvious buy against her, and Sejuani reaches 126.7 of it by level 18. Execution ratings are 5 and 4 respectively, so neither side asks much of its pilot, and both spend Mana.
FAQ
Yes — Sejuani holds the statistical advantage in this matchup. Sejuani wins 56.8% of the recorded games.
56.8% from Sejuani's perspective, measured on patch 16.13.1.
139 ranked games at Emerald rank and above, across all regions.
The current Sejuani build — items, runes and skill order from the same data set — is on the Sejuani build page.