Celestial Archon is a rare Enchantment Creature — Archon card from Theros Promos (PTHS), collector number 3★. Current market price: — (foil $0.32), TCGplayer market prices via Scryfall.
Bestow {5}{W}{W} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached.) Flying, first strike Enchanted creature gets +4/+4 and has flying and first strike.