Meteor Sword is a uncommon Artifact — Equipment card from Avatar: The Last Airbender (TLA), collector number 258. Current market price: $0.27 (foil $0.36), TCGplayer market prices via Scryfall.
When this Equipment enters, destroy target permanent. Equipped creature gets +3/+3. Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)