Eulb Owl

Chosen one {1}{u} (You may cast this creature for its Chosen One cost if you sacrifice either a blue creature or a bird creature while casting it)
Whenever you draw a card, you may discard it. If you do, scry X where is X is the number of creatures you control. Whenever a creature you control dies, lose X life where X is the creature's toughness. Whenever an instant or sorcery card enters your graveyard, draw a card.