Crown of Awe is a common Enchantment — Aura card from Onslaught (ONS), collector number 16. Current market price: $0.14 (foil $0.60), TCGplayer market prices via Scryfall.
Enchant creature Enchanted creature has protection from black and from red. Sacrifice this Aura: Enchanted creature and other creatures that share a creature type with it gain protection from black and from red until end of turn.