Teemo.... Thats right Teemo

His cuteness certainly contributes, but I think most of it derived from his play style. Lots of melee champs absolutely hate his constant skirting around the edges of their engage range, constantly poking them and then always barely getting away if they did engage.

Beyond that, his old mushroom AP scaling used to be significantly higher (like .8 AP rather than .5, I think). Also, red trinket didn't always exist. Up through season 2, what you had instead was Oracle's Elixir. It cost 400 gold, and it lasted until you died. It didn't let you see into brush; it just let you see stealthed things. So if you had Oracle's Elixir active, it meant you could clear wards, and that meant the entire enemy team wanted to kill you, sometimes more than they wanted to kill your carries. So your options for dealing with mushrooms were A) spend 125 per pink ward (similar to control wards) and keep an inventory slot open, or B) spend 400 per Oracle's Elixir and hope you don't die for at least 5-10 minutes.

So his old mushrooms were more painful, harder to find, and impossible to disable... he could handicap entire teams just by convincing them he had an area full of mushrooms (even if he didn't really).

Nowadays you can just have 5 red trinkets on your team post level 9, and he isn't nearly as threatening. But before.... ;)

wrong comment sorry

the higher up you go the worse he gets, he's fun but i don't think i've won with teemo in like 8 games with him now, and i'm a level 7 mastery teemo with 50k points on him lol

Not for you. But for me, nearly every game with a teemo. That team loses. Except once recently i believe