I really don't see how Shadow Assassin form is an assassin tbh. Sure he's mobile with the buffed E and R distance but his damage seems the same as if it's normal Kayn. However if you look at Darkin's damage, he does MASS damage while sustaining. Imo Darkin is the assassin. I have full lethality yet my damage is NOTHING compared to Darkin's damage. Shadow Assassin could be a bruiser because of his passive, but I also see Darkin as one because of all his max health % damage.