Serra's Embrace is a uncommon Enchantment — Aura card from Duel Decks Anthology: Divine vs. Demonic (DVD), collector number 21. Current market price: $0.45, TCGplayer market prices via Scryfall.
Enchant creature Enchanted creature gets +2/+2 and has flying and vigilance. (Attacking doesn't cause it to tap.)
All Duel Decks Anthology: Divine vs. Demonic cards and prices