Okiba-Gang Shinobi is a common Creature — Rat Ninja card from Planechase 2012 (PC2), collector number 35. Current market price: $1.54, 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.) Whenever this creature deals combat damage to a player, that player discards two cards.