Infernal Familiar

Bestow {2}{b}{b} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
Flying — Enchant creature gets +1/+1 and has flying.
When Infernal Familiar or enchanted creature deals combat damage to an opponent, Pry 1. (Look at the top card of your opponent's library. You may put that card on the bottom of their library.)