Toshiro Umezawa is a rare Legendary Creature — Human Samurai card from Betrayers of Kamigawa (BOK), collector number 89. Current market price: $5.31 (foil $86.84), TCGplayer market prices via Scryfall.
Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.) Whenever a creature an opponent controls dies, you may cast target instant card from your graveyard. If that spell would be put into a graveyard, exile it instead.