Atomic Self-Immolation

 You die. The atoms of your corpse are converted into energy, which is unleashed in a nuclear explosion.

Choose an area of effect up to your current HP in radius, but no more than 1,000 ft.

• Each tiny creature within the area of effect receives 2d6 Thunder damage, 1d4 Fire damage, and 1d4 Radiant damage.
• Each large, Medium or Small creature within the area of effect receives 1d10+10 Thunder damage, 1d6+1 Fire damage, and 1d6+1 Radiant damage.
• Each huge creature within the area of effect receives 1d10+1 Thunder damage, 1d10+2 Fire damage, and 1d10+10 Radiant damage.
• Each Gargantuan or larger creature within the area of effect receives 1d10+2 Thunder damage, 2d6+10 Fire damage, and 2d6+10 Radiant damage.

If this was cast with a Level 9 spell slot, each creature receives an additional 1d20+4 Necrotic damage.

• Any creature within the area of effect, or within 20 feet from it, who was looking at you is Blinded, until they regain HP by any means other than by a rest.
• All creatures within the area of effect are Deafened for 24 hours.
• Each creature who received at least 7 Radiant damage are Irradiated, which means that they take 1d4 Necrotic damage at the beginning of each day, until they regain HP by any means other than by a rest.