Swain is the new Ornn
Top laner who is relatively new, can build full tank and still deal more damage then most every fighter and assassin in the top lane.
There's two people I'm referring to with that statement. The first would be Ornn back a few patches ago when he was buffed up so much that he dominated everyone top lane without remorse for over 2 months. The second, and the one we have to deal with now, is Swain, who has been buffed up so much that his Q has the second highest base damage of any basic ability in the game (second only to Zoe's Q). This is on top of the fact that his kit overall has low cooldowns, with his Q getting cut down to an approximately 1.5 second cooldown with max CDR.
Swain is now so strong that, even without building damage, he now actually deals more base damage with his kit then an equally fed Riven and Yasuo from levels 6 to 14 that actually build damage. He also has much more oppressive crowd controls, self healing, and not to mention he is supposed to be a RANGED BRUISER, not a fighter or an assassin.
But don't just take my word for it; here's the links to watch two YouTube videos of a popular, high diamond level YouTuber and streamer who's abusing the newly buffed Swain and going fully in depth on why he is more broken then a 2,000 year old vase that's been thrown to the ground. (Second video is from one of the first patches where Swain is buffed, where as the first shows him in the newest patch.)