Opal-Eye, Konda's Yojimbo is a rare Legendary Creature — Fox Samurai card from Betrayers of Kamigawa (BOK), collector number 17. Current market price: $4.36 (foil $18.70), TCGplayer market prices via Scryfall.
Defender (This creature can't attack.) Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.) {T}: The next time a source of your choice would deal damage this turn, that damage is dealt to Opal-Eye instead. {1}{W}: Prevent the next 1 damage that would be dealt to Opal-Eye this turn.