Aaron, Mind Scraper

Deathtouch, Fear, Flash
When Aaron, Mind Scraper is cast, you may discard any number of cards from your hand to have it enter the battlefield with X +1/+1 counters on it where X is equal to the number of cards discarded.
When Aaron, Mind Scraper enters the battlefield, each opponent discards X cards from their hands where X is equal to the power of this card.