Amandi's Mycelial Corruption

You tap into the power of the mycelial growth around you causing the target to hallucinate. The target must make a Wisdom saving throw. On a failed save, the target becomes charmed  While  charmed by this spell, the creature is incapacitated and has a speed of 0 for the duration. At the end of each of the target's turns before the spell ends, the target must succeed on a Wisdom saving throw or take 3d10 psychic damage. On a successful save, the spell ends.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d10 for each slot level above 4th.