User blog comment:Emptylord/Champion reworks/Teemo the Swift Scout (2012)/@comment-41.132.76.21-20120325143900/@comment-3974211-20120325171508

Mine fields already deal 50/100/150 per shroom hit. This is no different. The first shroom just deals more damage.

Also, applying on-hit effects on Blinding Dart mean it doesn't apply spell vamp. While yes, a Blinding Dart + Poison + Lich Bane would be strong, he has no sustain paths any more. Besides, Fizz can already pull this off with can already pull this off with Urchin Strike + Seastone.