League of legends as a dungeon crawler

Riot should take league and add a dungeon crawler element to it as its own game type. Like diablo for example rpg dungeon crawler. We could ether play the current champions as a main char or have simaler versions we could pick and level up and play. If we dont pick current champions to level in this type of rpg dungeon crawler then have them be npc around the world we would do quest for or have to fight/help. We could explore runetarra and get a more indept look into the champions and the world they live in. What do you guys think?