Wolfbat [Avatar: The Last Airbender]

Flying
Whenever you draw your second card each turn, you may pay {B}. If you do, return this card from your graveyard to the battlefield with a finality counter on it. (If a creature with a finality counter on it would die, exile it instead.) Wolfbats nest in tunnels carved out by badgermoles and hunt for prey in the dark caverns.