Haven't seen a Mundo complaint in a while so here you go
EDIT: Immediate downvotes from people who don't seem as if they've read the post.
Mundo's still fucking broken. Not much of an argument to this, it's been known for a while and apparently he's still way overtuned even after his nerf this patch.
His cooldown on his ult was nerfed. Cool, how about you nerf the ACTUAL ULT NOW? A 0/2 Mundo can turret dive a 2/0 Riven with significantly more farm RIGHT as he reaches level 6. Nice!!!
His E. What the fuck? Damage nerf, but it's still just as overpowered when leveled up.
Mundo is way too tanky with only one tank item.
He was originally buffed when he didn't need a buff.
His slow on his Q is too strong for something with such a low cooldown.
Could probably list more.