Harmonious Archon is a mythic Creature — Archon card from Throne of Eldraine Promos (PELD), collector number 17p. Current market price: $0.39 (foil $1.25), TCGplayer market prices via Scryfall.
Flying Non-Archon creatures have base power and toughness 3/3. When this creature enters, create two 1/1 white Human creature tokens.