Raven Eagle is a rare Creature — Bird Assassin card from Avatar: The Last Airbender (TLA), collector number 324. Current market price: $0.81 (foil $1.09), TCGplayer market prices via Scryfall.
Flying Whenever this creature enters or attacks, exile up to one target card from a graveyard. If a creature card is exiled this way, create a Clue token. (It's an artifact with "{2}, Sacrifice this token: Draw a card.") Whenever you draw your second card each turn, each opponent loses 1 life and you gain 1 life.