Your skill of waving real fabric into your illusion lets you create a horrific phantom in a 15-foot cube or smaller, in a space which you can see within range. The phantom takes the shape of a monster you have experienced in your own nightmares, or another fear inducing creature you have at least seen once. It can be placed on the ground or floating in the air, it remains there until the end of your next turn, after which it will vanish if not dispelled earlier. The phantom obscures sight to some degree, a creature may see through the phantom but things within or on the other side of the phantom appear to be somewhat blurry and distorted. Attacks go right through the phantom, and it is hostile to every creature including yourself.

If a creature is within the phantoms space during the casting of this spell, enters the phantoms space for the first time on its turn or ends its turn there, it will be attacked by the phantom and is forced to make a wisdom saving throw against your spell save DC. On a failed save, a creature takes 3d8 psychic damage and becomes frightened by the phantom until it vanishes. On a successful save, a creature takes half as much damage and does not become frightened. While a creature is frightened by this spell, the creature treats the phantom as if it were real and wants to move away from it. If a creature fails this saving throw while being frightened, it will instead become paralyzed until the end of its next turn. A creature has disadvantage on attack rolls, ability checks, and saving throws that rely on sight while it remains within the phantoms space, with exception to the saving throws against the phantoms effects if not disadvantaged for other reasons. Attacks or abilities that rely on sight that have a target within the phantoms space or on the other side of it have disadvantage as well.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d8 for each spell slot level above 3rd. When you cast this spell using a spell slot of 5th level or higher, the cube size increases by 5 feet for every two spell slot levels above 3rd.