Royal Treatment is a uncommon Instant card from Secrets of Strixhaven Mystical Archive (SOA), collector number 121. Current market price: $0.51, TCGplayer market prices via Scryfall.
Target creature you control gains hexproof until end of turn. Create a Royal Role token attached to that creature. (If you control another Role on it, put that one into the graveyard. Enchanted creature gets +1/+1 and has ward {1}.)