One for all, All for one
It's probably been suggested already, but i'll give it a try One for all, One champ for everyone All for one, Everyone controls One champ
5v5 Howling abyss
one controls mouvement + auto attacks one controls Q + aim one controls W+ aim one controls E + aim one controls R + aim + summoner's spells
(vayne, varus, twisted fate, kled, vi, disabled preferably, maybe cho)
would be unbearable to control