Kuro's Taken is a common Creature — Rat Samurai card from Saviors of Kamigawa (SOK), collector number 79. Current market price: $0.18 (foil $1.60), TCGplayer market prices via Scryfall.
Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.) {1}{B}: Regenerate this creature.