Lore based game-mode
What if they had a game mode where the lore gave you buffs/debuffs according to who was on the rift at the time. Played on summoners rift, classic. Draft mode. Examples: If you pick Vi, you cannot pick jinx on your team. but if you pick caitlyn, you get a buff. something like if you both ult the same person within a few seconds, it does bonus damage. If you pick kha'zix, you cant have a renger on your team. But with each kill, khazix, gets an evolution. pre-6 or whatever. Same with renger, if he gets kills, he gets a free stack on his passive. If you pick all freijlord champs, you all have increased slows or something. if you pick all noxian champs, you get move speed and AD If you pick all democian champs, you get more health and resistance All Void champs; get bonus apostrophe in your names if you pick gnar, you do more ult damage to rengar. -there could be endless interactions.- lucian-thresh vik'tor and like...half the champs ww and soraka ww and singed jax and....nobody, i guess
I think the strategic implications would be so fun to explore. If you first pick Garen, you would be locking out so many other champs that your team can't use. but it also mean the other team can't pick any demacian champs.
And no noxian could be on the team with a democian. the whole Azir, renekton, nasus, Xerath thing could have impacts. there's yordles, old and new. void monsters. eve and Tf relationship. endless possibilities.
and not these cheesey buffs they have now, with 1 health bonus or whatever, but make a game mode where the champ lore synergy is a core part of the game. With buffs and debuffs depending on who is on your team, and who you're playing against. I think that would be incredible. your knowledge of the lore will help you win games on the rift, and no longer be useless!