Talk:Kassadin/@comment-89.164.249.120-20121117163756/@comment-88.186.19.90-20121118121424

Kassa's W is not an on-hit effect or an attack enhancer, it's a spell applied through autoattacks, which is why it procs spellvamp and Rilay but doesn't convert sheen damage, because what you are technically doing is casting a spell at the opponent every time you autoattack.

Poppy Q on the other hand is an autoattack enhancer, so it applies Rilay and spellvamp because it's a spell on an autoattack, and it converts sheen damage because it is tied to the AA.