Court of Vantress is a rare Enchantment card from Wilds of Eldraine Commander (WOC), collector number 22. Current market price: $4.92 (foil $5.77), TCGplayer market prices via Scryfall.
When this enchantment enters, you become the monarch. At the beginning of your upkeep, choose up to one other target enchantment or artifact. If you're the monarch, you may create a token that's a copy of it. If you're not the monarch, you may have this enchantment become a copy of it, except it has this ability.