Griffin Guide is a uncommon Enchantment — Aura card from Duel Decks: Ajani vs. Nicol Bolas (DDH), collector number 25. Current market price: $0.22, TCGplayer market prices via Scryfall.
Enchant creature Enchanted creature gets +2/+2 and has flying. When enchanted creature dies, create a 2/2 white Griffin creature token with flying.