Tolsimir Wolfblood is a rare Legendary Creature — Elf Warrior card from Ravnica: City of Guilds (RAV), collector number 236. Current market price: $0.79 (foil $5.00), 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.