Mukotai Ambusher is a common Artifact Creature — Rat Ninja card from Kamigawa: Neon Dynasty (NEO), collector number 342. Current market price: $0.28 (foil $0.34), TCGplayer market prices via Scryfall.
Ninjutsu {1}{B} ({1}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Lifelink