Gimli's Reckless Might is a rare Enchantment card from Tales of Middle-earth Commander (LTC), collector number 494. Current market price: $9.29 (foil $5.43), TCGplayer market prices via Scryfall.
Creatures you control have haste. Formidable — Whenever you attack, if creatures you control have total power 8 or greater, target attacking creature you control fights up to one target creature you don't control.