Willow, Roots of Perdition

Defender
{b}{b}{b} Exile 13 Creature cards from
your graveyard: CARDNAME gets
+12/+10 until end of turn and may
attack as though it didnt have defender.
When CARDNAME Deals combat damage
to a player this turn, if you activated it's
activated ability this turn defending player's
life total becomes 13.