Pyromancer's Goggles is a mythic Legendary Artifact card from Secret Lair Drop (SLD), collector number 1066. Current market price: $5.70 (foil $7.73), TCGplayer market prices via Scryfall.
{T}: Add {R}. When that mana is spent to cast a red instant or sorcery spell, copy that spell and you may choose new targets for the copy.