Guts' story is not for the faint of heart, so read the above background link at your own discretion. But it's safe to say that none of League's Champions have it as bad as him.
Is his FUBAR life too dark for League? Or could we eventually have a story that rivals it?
Ralanr3 votesGut's story is dark but has good moments (by which I mean light) that pop up every now and then throughout a massive story that is still not finished. I think Muerta (probably got that wrong) said he wasn't even 1/3rd of the way done in the story.
League of legends lore is not that long.
Plus we have Darius.
NemeBro2 votesAlmost certainly not.
Can you imagine a champion witnessing his girlfriend being brutally raped in front of him after all his friends were dismembered as a huge part of their background?
Berserk is 2grim4LoL.
GreenLore1 votesWell Tryndameres story consists of his whole tribe getting slaughtered. Though the rape part never happened.
Spicy Rice1 votesTo be fair, its gonna be hard to make a backstory as dark as Guts without putting alot of time into developing the story. Atm though, Master Yi's old lore is pretty dark.
darkdill1 votesTrue enough, though I hope Riot will at least try.
Pyrodinium1 votesThere is probably not enough appeal for that kind of story in this game.
They could try, but should they?
Tragic characters like Miss Fortune enjoy a moderate following at best.
Narasimha1 votesWithout going into full 40k grimdark, unlikely. Runeterra is too people friendly.
GreenLore1 votesActually 
seems to be pretty much an expy of guts.
I mean he is a really angry dude with a huge black sword and his archenemy is a somewhat feminine looking male demonic being,who belongs to a group of 5 of these beings,who killed the family/friends of the berserker and who is seen as a hero by some,despite the fact that he only cares about himself.(bonus points for femto being red in the original anime)
So yeah tryndameres story is almost as bad as guts.