Veil of the Nameless King

You erase a chosen creature from the memory of the world. Choose one target within 1 mile that you can name or describe. The target must make a DC 21 Charisma saving throw or be cloaked in the Veil of Oblivion: No creature can perceive or remember the target unless they beat a DC 21 Arcana check or possess truesight. The creature is undetectable by magical sensors or divination. Allies forget the creature, enemies overlook it. Attacks made by the creature while veiled have advantage; attacks against it have disadvantage