Briar vs Sejuani Counter Pick

Sejuani’s Frost Armor grants bonus armor, magic resist, and slow immunity the moment she’s out of combat for a moment, which directly counters the stun-and-chase plan Briar’s kit depends on — and across 490 games on patch 16.13.1, Briar wins only 47.8% of the time. As a pure Tank rather than a Fighter or Assassin hybrid, Sejuani is built to absorb exactly the kind of burst Briar brings to a jungle clash.

• Winter’s Wrath applies Frost stacks on both swings, and once Sejuani reaches maximum stacks, Permafrost stuns Briar outright — removing her ability to land Head Rush first.
• Sejuani’s 630 base health scales to 2,568 at level 18 with 126.7 armor at that point, both higher than Briar’s 2,240 health and 106.5 armor.
• Glacial Prison’s bola stuns on hit and creates a slowing ice storm afterward, a level of area denial Briar’s melee kit has no ranged answer to.

Briar’s win condition is landing Head Rush’s stun before Sejuani builds Frost stacks through her own Winter’s Wrath, since Crimson Curse’s healing bleed can outlast a slower, non-stunning trade if the fight drags. Certain Death still threatens a beeline execution once Sejuani’s health drops, but getting there first is the hard part against a champion built to soak damage.