Sylas feels so bad
I tested Sylas like 10 games with a lot of runes and builds and he feels so bad. No good base damages so you can't build him more tanky, needs like 3 seconds to kill, no % damage or anything, just high AP ratios on some skills (and his E does like almost no damage) but that's all. Not really a bruiser mage.... More like a bad assassin design actually. He needs huge buffs or changes, because he does not so much damage on lane and the poke maxing Q is so bad. Actually he haves one of the worst winrates on champion release (~30%) P.S; With more base damage he could actually be played on toplane with grasp and a sustain build. In the midlane feels so good with phase rush because you can trade and go back, but then he lack a lot of damage.