

Orianna vs Sion Counter Pick
Matchup Summary
What the Data Means
Almost everything Sion does is announced in advance. Decimating Smash charges before it swings, Soul Furnace shields first and detonates three seconds later, and Unstoppable Onslaught builds speed across a long distance with only slight steering. Against a champion who fights through a Ball placed ahead of time, telegraphed commitment is an ideal opponent, and Orianna takes the mid lane matchup 54.0% over 113 games on patch 16.13.1.
The numbers behind that Easy rating are less flattering than the mechanics. Sion opens with 655 base health against 565 and 36 armor against 20, and his damage is mixed rather than purely physical, so Orianna’s 26 base magic resist is exposed as well. Where he falls away is scaling: 2,134 health at level 18 is a modest ceiling, and she reaches 2,435 despite starting 90 behind.
Command: Dissonance is the specific tool. Its field slows enemies inside it, and a slowed Unstoppable Onslaught arrives late and steers badly; Command: Shockwave then pulls him back toward the Ball instead of through her team. Roar of the Slayer reduces the armor of the first enemy hit, which does nothing at all against magic damage. Glory in Death means Sion keeps swinging after he dies, so ending a fight inside his 175 attack range is still worth avoiding.
FAQ
Yes — Orianna holds the statistical advantage in this matchup. Orianna wins 54.0% of the recorded games.
54.0% from Orianna's perspective, measured on patch 16.13.1.
113 ranked games at Emerald rank and above, across all regions.
The current Orianna build — items, runes and skill order from the same data set — is on the Orianna build page.