Sylas is one of the most balanced champs in the game

Yes i know, he has dashes, AOE, cc, heals, shields, can steal ultimates etc.

but the reason why he is balanced is because his health regen is so shit, you can basically poke him out of lane if he doesn't dash on you and kills you. also his base AD is pretty low so he can't last hit properly with his autoattacks.

also his ultimate is shit because he has to steal other champions ultimates, he doesn't have his own ultimate