Now I mean lore wise.
Another Garen. Some one who is just an average guy. They didn't find some gauntlet and become insanely over powered.
Some one who decided they wanted to work hard as shit and then became strong.
Edit: Jesus christ guys boring=/=normal Edit 2: Whats wrong with someone who doesnt get a deus exmachina and instead works hard?
Normal is boring. I am not coming to LoL to play average people.
Normal is average, average is boring.
Garen is not normal though, he has magic he is unaware of it.
(errrr somewhat. 1/2 skill, 1/2 magical bow) 
(kinda. similar to ashe) 
Idk what more archetypes you can fit in there
I mean, I get what you are saying, you want someone else that isn't a demi god or something like that. But there already champs that are human, with not a lot of magic or no magic that have special training, and a fair share of them. And about your example of Garen- he's not a normal person, Demcia trains their soldiers in a way that even outnumbered, they can push armored enemy lines. What kind of training you ask? FUCKIN MOVING GIANT STONE STATUES THAT SHOULD BE AT LEAST 500 KG WITH FUCKIN CHAINS( as seen in the worlds 2018 music video) THAT ISN'T NORMAL IN ANYWAY YOU LOOK AT IT So.. yeah, your dream of an everyday joe finding a cause to train hard enough and with enough belief in that cause that will make him a champ in league, shonen anime style, isn't going to be fulfilled soon, Because there already a fair amount of "normal people" in the game already.
vayne is literaly league's batman what are you talking about
Long ago, Lulu was your average happy yordle child.
Then, everything changed when the Faeries attacked.
Only Pix, a playful trickster Fae, could train Lulu in the ways of Glitter, Whimsy, and Hugefying things. And while her transmogulate is powerful, she is easily distracted by squirrels that look familiar.
But I believe, Lulu can warp reality and change the world. 
