Sword of Once and Future

Artifact — Equipment{3}

Equipped creature gets +2/+2 and has protection from blue and from black. Whenever equipped creature deals combat damage to a player, surveil 2. Then you may cast an instant or sorcery spell with mana value 2 or less from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead. Equip {2}

Colour identity Colorless · Surveil, Equip

In short

Sword of Once and Future has 4 listed printings; the most valuable is the Prerelease printing from PMOM at US$9.18 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.