Sirus the Overpassioned

Whenever you draw a card, sacrifice Sirus unless
you discard a card or lose 3 life.
Whenever you lose life, exile that many cards
from the top of your library. You may cast spells exiled this way during your turn.
Whenever a nonland card is put into your
graveyard from your hand, Sirus deals damage
equal to that card's converted mana cost to target
player.