Senu, Keen-Eyed Protector is a rare Legendary Creature — Bird Scout card from Assassin's Creed (ACR), collector number 8. Current market price: $1.46 (foil $2.08), TCGplayer market prices via Scryfall.
Flying, vigilance {T}, Exile Senu: You gain 2 life and scry 2. When a legendary creature you control attacks and isn't blocked, if this card is exiled, put it onto the battlefield attacking.