Ninja of the New Moon is a common Creature — Spirit Ninja card from Modern Horizons (MH1), collector number 99. Current market price: $0.23 (foil $0.37), TCGplayer market prices via Scryfall.
Ninjutsu {3}{B} ({3}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)