Dr, mundo nerf/rework

Mundo hasn't been seen in the rift in a while, but after his ult buff came on. There have been some changes after the ult buff went on he has been unstoppable I haven't had one game with him where he could be stopped. This is because his ult and spirit visage can be combined to an ult that gives him 130% of his health back plus his q's dmg and the extra free magic resist and more ad the lower his health is. either his should be nerfed or at least a change to his extra ad and mr.

Or they could do something totally different they could rework as a whole new champ where is playable against. And this would help with new champs because this champ is not new, he is old and broken.