Battle-Mad Ronin is a common Creature — Human Samurai card from Champions of Kamigawa (CHK), collector number 156. Current market price: $0.14 (foil $0.95), TCGplayer market prices via Scryfall.
Bushido 2 (Whenever this creature blocks or becomes blocked, it gets +2/+2 until end of turn.) This creature attacks each combat if able.