Beldroth's Stupifying Inferno

Illusory flames wreathe one creature you can see within range. The target must make an intelligence saving throw. It takes 6d6 psychic damage on a failed save, or half as much damage on a successful one. On a failed save, the illusory flames remain on the creature for the spell’s duration, its mind believing them to be real.At the end of each of its turns, the target repeats the saving throw. It takes 3d6 psychic damage on a failed save, and the spell ends on a successful one. These illusory flames can’t be extinguished, but the targets mind will justify this in any way it can.