Ninja of the Deep Hours is a common Creature — Human Ninja card from Betrayers of Kamigawa (BOK), collector number 44. Current market price: $2.24 (foil $20.85), TCGplayer market prices via Scryfall.
Ninjutsu {1}{U} ({1}{U}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever this creature deals combat damage to a player, you may draw a card.