Talk:Kennen/@comment-1439531-20120404140836/@comment-4988285-20120404204431

As far as i know his Q, W active (not on-hit effect) and his ult get 100% spell vamp. Its right that aoe usually has 33% but i think the thing thats important is that some spell are aoe but they can only hit a limited amount of targets. Those who cannot hit EVERYTHING in the area get 100% even tho they hit multiple targets.

Examples are Swains ult, Ahris ult and W etc.

I might be wrong ofc but im pretty sure thats the explanation. :)