Wrecking Ball Arm is a rare Legendary Artifact — Equipment card from Final Fantasy Commander (FIC), collector number 128. Current market price: $1.01 (foil $1.62), TCGplayer market prices via Scryfall.
Equipped creature has base power and toughness 7/7 and can't be blocked by creatures with power 2 or less. Equip legendary creature {3} Equip {7}