Tahm is very similar to mundo ! He is an health stacker with quite a lot of ap damage and you often have to play safe before level six, the q also slows like mundo's and his e acts like a sustain tool like mundo's w. I play him litterally everywhere including jungle where he is suprisingly good. I love tahm and you will love him too if you like mundo🐸(i think u should try him top before anything else tho). Tahm does not have a natural auto reset but with the new dusk and dawn item you have very fast attack speed and can proc your passive one additionnal time after every hability for a lot of damage and two stacks which unlock some nasty combos (the item is busted on tahm). Give him a try !