Sion Ability (LoL): Roar of the Slayer

Sion bellows in the target direction, dealing 65 / 100 / 135 / 170 / 205 (+55% of ability power) magic damage to the first enemy he hits, as well as slowing it by 40 / 45 / 50 / 55 / 60% and reducing its armor by 20% for 4 seconds.

If the target is a minion or non-epic monster, they are knocked back 775 units, dealing the same damage and applying the same effects to all enemies they pass through. Projectile enemies stop upon colliding with terrain or reaching the end of their trajectory.