Snorlax, Sleepy Dude

+5: Look at the top card of your library, then put it onto the battlefield attached to Snorlax as an Aura enchantment with "Discard a card: Scry 0."
-15: Target creature gains your choice of first strike or first strike until end of turn. That creature can't attack or block this turn.
-20: You get an emblem with "Whenever you draw a card, scry 0, then reveal your hand."