Ardryll's Mighty Obscurement

You create a 20-foot-radius sphere of pure concealment centered on a point within range. Each creature or object of your choice within this area is not observable by any means outside of the sphere. This obscurement applies to all creature types, deities, and other similarly powerful beings. Any divination spells or magical scrying can see inside of this radius, but cannot perceive the designated creatures and objects.

Creatures that are designated can see and interact with each other, while any other creature cannot perceive or understand they are interacting with any designated creature within this area. Should a creature accidentally interact with another within this space, they are convinced that it was some other thing that interacted with them. If any designated creature makes an attack, casts a spell that affects an enemy, or deals damage to another creature while within the radius, this spell ends.