Trundle Ability (LoL): Pillar of Ice

Trundle creates an icy pillar at a target location for 6 seconds, creating impassable terrain and slowing all enemy units by 30 / 34 / 38 / 42 / 46% around the pillar for 0.25 seconds. The slow duration is refreshed if enemies stay within the area around the pillar. Enemies caught in the center of the eruption are briefly knocked back.