Red Sun's Twilight is a rare Sorcery card from Phyrexia: All Will Be One Promos (PONE), collector number 145p. Current market price: $0.36 (foil $0.36), TCGplayer market prices via Scryfall.
Destroy up to X target artifacts. If X is 5 or more, for each artifact destroyed this way, create a token that's a copy of it. Those tokens gain haste. Exile them at the beginning of the next end step.