Upon taking fatal damage, Sion briefly becomes untargetable and enters a frenzy, restoring himself to 100% maximum health but losing 2 - 19 (based on level) every 0.25 seconds, increasing by 1.4 - 13.3 (based on level) per subsequent tick.
First Cast:Sionchannels for up to 2 seconds in the direction of the mouse cursor, increasing Decimating Smash's damage over the duration (up to 300%) and its range over the next second. If the channel is interrupted, Decimating Smash goes on a reduced 2 seconds cooldown.
If Decimating Smash was charged for less than 1 second, Sionslows all enemies in the area by 50% for 0.25 seconds. Otherwise, if Decimating Smash was charged for at least 1 second, he knocks up all enemies hit for 1.25 - 2.25 seconds, based on how long Decimating Smash was channeled.
If the target is a minion or non-epic monster, they are knocked back, dealing 30% increased damage to all enemies they pass through and slowing them by the same amount for 2.5 seconds. Projectile enemies stop upon colliding with terrain or reaching the end of their trajectory.
First Cast:Sion charges in the target direction for up to 8 seconds, during which he cannot cast abilities nor attack, but is immune to all crowd control. Sion's trajectory updates itself toward the cursor over the duration, but his capacity to change directions is reduced.
Second Cast:Sion halts his charge and slams the ground after a brief delay, dealing physical damage to nearby enemies and enemy turrets. If Sion stops directly in front of narrow terrain, he dashes over it.
If Sion collides with an enemy champion, structure, terrain, or charges for the full duration, he slams the ground, dealing physical damage to nearby enemies and turrets, briefly stunning himself for structure and terrain collision.