Consecrated by Blood is a uncommon Enchantment — Aura card from Magic Origins (ORI), collector number 87. Current market price: $0.24 (foil $0.43), TCGplayer market prices via Scryfall.
Enchant creature Enchanted creature gets +2/+2 and has flying and "Sacrifice two other creatures: Regenerate this creature." (The next time the creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)