Perhaps I'm not playing him correctly, I did play him for maybe a total of 4 or 5 matches. Masochism gives him extra damage for health he's missing but it's only 99 extra damage at 1% life. Infected Cleaver has a lot of potential, especially on enemy tanks, but it's static damage and it's not exactly easy to hit. I tend to hit Mundo's ult right away in team fights since I was initiating with him, that sacs extra damage from Masochism right there. I suppose I would've known that if I tried playing him as tanky DPS, again his builds in terms of items go for health and resists so he looks like a tank in builds.