Bruenor Battlehammer is a uncommon Legendary Creature — Dwarf Warrior card from Adventures in the Forgotten Realms (AFR), collector number 337. Current market price: $0.82 (foil $10.20), TCGplayer market prices via Scryfall.
Each creature you control gets +2/+0 for each Equipment attached to it. You may pay {0} rather than pay the equip cost of the first equip ability you activate each turn.