I for one, welcome our new Dr. Mundo overlords.
He really does go where he pleases. He also kills who he pleases. In all seriousness, I honestly think people are overlooking just how strong tanks have become while the endless qq about adc is still going on. Has anyone actually bothered looking at how goddamn good some of these tanks are right now (in spite of the GW changes which everyone assumed would gut Mundo)? He's making Yasuo look like a joke champion right now.

into their builds VS Mundo instead of always trying to build 100% crit chance
in every game.
Mundo got a pretty big buff along with all other tanks. The items aren't that great anymore unless they're buying 2 - 3 Armor items. Mundo can get away with just buying things like Warmogs over Thornmail against an AD comp though since he does well with health and regen.