Swain needs a serious nerf.
I was mid laning against a swain the other day and early game I had him under control for the most part. But as soon he got 1 kill and his ult, it was just gg. He was basically unkillable with the amount of lifesteal he has. It took a malphite, volibear, and Katarina(me) just to kill the guy and that's if he was by himself. So please definitely look into this as it gets very irritating to face an unbalanced champ like that.