Eclipse of the Fractured Mind

(You do not use a spell slot. Instead, you use your hit dice equal to the spells level. e.g. if your hit dice is a d4, this spell will require you to take 8d4 psychic damage instead of expending a 8th level spell slot)

You let the Madness consume your mind, letting out a blood curdling screech which can be heard by anyone, even those who are Deafened. After paying life equal to your hit dice + this spells level, you manifest an eclipsed sun above your head, surrounded be yellowish-orange flames. Anyone who sees this sun within 90ft must make a WIS saving throw. On a failed save, they take 11d8 fire damage and becomes overwhelmed by Madness and becomes Unconscious, but not Incapacitated or Prone. On a successful save, they only take half as much damage and is not affected by Madness.

Those who failed the WIS save may use an action on their turn to attempt another WIS save to no longer be overwhelmed by Madness. On a failed save, they take 5d8 fire damage and is still overwhelmed by Madness.

At Higher Levels. When you cast this spell using a spell slot of 9th level or higher, the initial damage increases by 1d8 for each slot level above 8th.