League of Legends?

has anyone heard of any campaigns based on League lore?

No, but that's a pretty cool idea. I bet you could do it with modified Exalted.

well, im not a gm myself. i was hoping someone could take up the challenge

Unfortunately, there's almost never enough GMs for the amount of players (GMing is a lot of f/n work). Rebuilding or retooling a system takes even more time (and I mean a *lot* of time), so you're better off doing the conversion, learning to GM, and going from there, rather than finding someone who will do the conversion for you.

I would try something like Fate. Shouldn't be too hard with a narrative based system. Example Aspects for Garen: "Spin to Win" Invoking it and the opposite when used by a GM because it implies arrogance. "DEMACIA" is another good one. There's options to strengthen and weaken the player with an aspect like that. "Because Garen is a skill warrior of Demacia and doesn't fear fighting several opponents at once. I'm invoking his Spin to Win when when he swings his sword at three Noxus solders guarding the gate." I would check Fate out. There's no need to design system unless you really want to.

I actually had thoughts of forming people for a league of legends based campaign myself, i think it would be cool to interactwith the champions or make some of our own :)

well id be game