Twilight Dragon Chaotile

Flying, lifelink
{w}{w}, {t}, Exile a Dragon creature card from your graveyard: Exile target creature with less toughness than the exiled card's power.
{b}{b}, {t}, Exile a Dragon creature card from your graveyard: Return target Dragon creature card from a graveyard with converted mana cost less than or equal to the exiled card to the battlefield.