Vex vs Sion Counter Pick

A mid-lane tank poses a different challenge than an assassin does, and the data backs that up: Vex wins only 44.4% of her 126 games on patch 16.13.1 in a matchup rated hard. The sample is modest, so the precise number will shift from patch to patch, but the core of the disadvantage is built into the kit.

Sion is hard to bring down. He starts with 655 health and 36 armor, gains permanent maximum health from kills through Soul Furnace, and that ability also grants a shield. Glory in Death brings him back after he dies, with rapid attacks that restore his health. Killing him once does not end the fight, and Vex’s burst is calibrated against mages sitting at 2,358 health at level 18. His 68 base attack damage is the highest number on either champion’s sheet, and Decimating Smash launches enemies into the air when it charges long enough, which alone can decide a trade.

Vex makes up for it with range, 550 to his 175, and Sion moves at 345 against her 335. That speed gap matters because Unstoppable Onslaught accelerates as it goes, and once he commits, Doom ‘n Gloom cannot be used to escape it. Roar of the Slayer strips armor and slows, and it passes through minions, which gives him the ranged pressure he would otherwise be missing. The practical approach is to place Looming Darkness so he has no safe way in, and to hold Personal Space for his charge, though a champion rated 5 for difficulty seldom gets that sequence wrong.