Dreamscape

You create a phantasmal terrain in a 30-foot cube within range that is visible only to you and one other creature of your choice within range. The terrain can be whatever you wish, such as a forest, a castle, or a desert. You and the target can interact with the terrain as if it were real, but it has no effect on other creatures or objects. The spell ends if you or the target leave the area, or if someone else uses an action to shake the target out of the illusion.