Feuille, the Wandering Leaf

Menace, Deathtouch, Lifelink
{t}: Add {b}{g}{u} to your mana pool. If you cast a
spell with mana value 4 or more with this
ability, draw a card.
{t}: Target creature gets -3/-3 until end of turn.
If a creature dies this way, draw a card.
Pay 5 life: Put this card from the command zone
to your hand.