Tolsimir Wolfblood is a rare Legendary Creature — Elf Warrior card from GRN Guild Kit (GK1), collector number 121. Current market price: $0.62, 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.