Sword of Forge and Frontier is a mythic Artifact — Equipment card from Secret Lair Drop (SLD), collector number 2817. Current market price: $12.58 (foil $13.03), TCGplayer market prices via Scryfall.
Equipped creature gets +2/+2 and has protection from red and from green. Whenever equipped creature deals combat damage to a player, exile the top two cards of your library. You may play those cards this turn. You may play an additional land this turn. Equip {2}