Kog'Maw Ability (LoL): Void Ooze

Kog'Maw launches ooze which deals 75 / 120 / 165 / 210 / 255 (+50% of ability power) magic damage to enemies it passes through. Enemies hit are also slowed by 20 / 28 / 36 / 44 / 52% for 1 second.

Additionally, it leaves a trail which slows enemies by 20 / 28 / 36 / 44 / 52% for .25 seconds. This slow duration is refreshed if the enemies stay on the trail.