Gimli, Mournful Avenger is a rare Legendary Creature — Dwarf Warrior card from Tales of Middle-earth Promos (PLTR), collector number 209s. Current market price: — (foil $1.29), TCGplayer market prices via Scryfall.
Gimli has indestructible as long as two or more creatures died under your control this turn. Whenever another creature you control dies, put a +1/+1 counter on Gimli. When this ability resolves for the third time this turn, Gimli fights up to one target creature you don't control.