A Nexus Of Quirks

[Nexus] is a powerful Quirk, with its ability to copy any Quirks the user sees and permanently save said Quirks into the user's arsenal. It is a dangerous Quirk in the hands of Villains, but what if it's in the hand of a boy named Izuku Midoriya? What sort of person will he become? Will he be a Hero? The next Symbol? Or will he dive into insanity? Rated M for mature themes.