Dokuchi Silencer is a uncommon Creature — Human Ninja card from Kamigawa: Neon Dynasty (NEO), collector number 340. Current market price: $0.29 (foil $0.41), 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.) Whenever this creature deals combat damage to a player, you may discard a creature card. When you do, destroy target creature or planeswalker that player controls.