Of all the things you could've buffed on Mundo
You buffed his damage lol. The one thing he has a fuck ton of for a tank. Especially when titanic hydra was just released.
You could've buffed his regen in some aspect, making grevious wounds less impactful vs him as an example somehow
You could've just left his W buff alone and that was fine
But you gave his insane, and when I say insane I mean one of the absolute best AD steroids in the game that's also on a low CD, an AA reset mechanic that has max HP scaling on top of that. What in the fucking fuck lol.
I know this board will go on about how tanks suck and blah blah but Mundo was fine. Yes his winrate was low, but news flash, it's always been low. Even when he was a meta top laner his winrate in solo queue was always sub 45%.
Here's my other concern: riot doesn't just revert buffs. No no, simplicity is something we shy away from here at riot games. Mundo is broken AF atm, they're going to end up nerfing him in other areas making him WORSE than he was BEFORE you buffed him. You could just revert the E buff that wasn't needed but yeah, that's too easy and we think outside the box here at riot - edgy as fuck.