-10~20% or so to all damage across the entire game.

Other champions could take additional nerfs after if necessary, but this much should apply to everyone minimum.

ADCs aren't worthless early game anyways. And they're not supposed to be strong early game either.

If someone who knows absolutely nothing about this game and has repeatedly proven so in his own thread could refrain from making a meaningless one word post, that would be appreciated.

Spend the time learning the game instead.