Swain is the new Ryze, I'm calling it right now.
Already sick of seeing this POS champion in top lane, whether I'm up there with him or not. Want to farm? You'll eat his E or his E + Q, both of which are targeted so you can't avoid it. You can get rid of the Q if you back out of range, but then he's zoned you off. If you REALLY try to fight him, he'll just snare you with W and if you can't avoid it (lol you're slowed by Q) you take massive damage. Can't beat his sustain? Well you're up the creek without a paddle, kid.
Once he hits 6, if you didn't bring Ignite, well the lane's over. He'll just press R and sap all your health. As long as he rushes Rod of Ages, that and his Doran's Ring will keep him easily topped off on mana (and that's excluding the chance of a manaless jungler giving him blue if he's on Blue side).
Before you check my match history, yes I have recently fought a few Swains, and yes I am salty. Just getting that out of our systems right now. I'm getting serious flashbacks when Ryze was considered one of the most cancerous top-laners, but Swain can shit on Ryze (I used to like Swain) AND be a bane to everyone else.