Nezumi Prowler is a uncommon Artifact Creature — Rat Ninja card from The List (PLST), collector number NEO-116. Current market price: $0.18, 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.) When this creature enters, target creature you control gains deathtouch and lifelink until end of turn.