Tolsimir Wolfblood is a rare Legendary Creature — Elf Warrior card from Ravnica Remastered (RVR), collector number 234. Current market price: $1.34 (foil $1.38), TCGplayer market prices via Scryfall.
Other green creatures you control get +1/+1. Other white creatures you control get +1/+1. {T}: Create Voja, a legendary 2/2 green and white Wolf creature token.