Mistblade Shinobi is a common Creature — Human Ninja card from The List (PLST), collector number PCA-20. Current market price: $0.69, TCGplayer market prices via Scryfall.
Ninjutsu {U} ({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 return target creature that player controls to its owner's hand.