

Sion vs Ahri Counter Pick
Matchup Summary
What the Data Means
Sion in the mid lane runs into a 375 unit range deficit, 175 against Ahri’s 550, and finishes at 44.6% over 372 games on patch 16.13.1. The figure is the direct consequence of a melee juggernaut having to walk at a mage who never has to stand still.
Charm decides the matchup outright. It instantly stops movement abilities and causes the target to walk harmlessly toward her, which means Unstoppable Onslaught, the steered charge that gives Sion his map presence, can be cancelled by one skill shot. Spirit Rush then adds up to three dashes on a single cooldown, so even a well aimed Decimating Smash after a long charge is easy to walk out of. Orb of Deception deals magic damage outward and true damage on the return, and true damage ignores the 36 base armor and 107.4 at level 18 that carry most of Sion’s defensive value.
His counterweights are real but narrow. Soul Furnace shields him and permanently grows his maximum health on kills, Roar of the Slayer slows and reduces the armor of the first enemy hit, and Glory in Death returns him after death with rapid attacks that heal. Ahri is fragile at 590 base health, 21 armor and 30 magic resistance, so one connected charge ends the exchange. Kits: Sion and Ahri.
FAQ
No — current data marks this as a counter matchup: Ahri has the statistical edge. Sion wins 44.6% of the recorded games.
44.6% from Sion's perspective, measured on patch 16.13.1.
372 ranked games at Emerald rank and above, across all regions.
The current Sion build — items, runes and skill order from the same data set — is on the Sion build page.