Living Lore (C21)

Living LoreCasting Cost: Card Type: Creature - AvatarPower/Toughness: */*Card Text:
As Living Lore enters the battlefield, exile an instant or sorcery card from your graveyard.
Living Lore's power and toughness are each equal to the exiled card's converted mana cost.
Whenever Living Lore deals combat damage, you may sacrifice it. If you do, you may cast the exiled card without paying its mana cost.