Yzgx, Prime Pneumavore

+1: Reveal the top two cards of your library. An opponent chooses one of them. Put that card into your hand and exile the other w/ silver counter on
-1: Put a card you own with a silver counter on it from exile into your hand.
-2: Create a 0/0 colorless Pneumavore creature token with "This creature gets +1/+1 for each colorless nonland permanent you control."