3rd-level mythic evocation

Magical darkness spreads from a point you choose within range to fill a 60-foot-radius sphere until the spell ends. The darkness spreads around corners. A creature with darkvision can’t see through this darkness. Nonmagical light, as well as light created by any spell (including any mythic spell) can’t illuminate the area.

You and any creatures you designate when you cast the spell can enter the darkness safely. Any other creature has its psyche assaulted by horrible mental images and must make a Wisdom saving throw if it starts its turn in the sphere, taking 10d12 psychic damage on a failed save, or half as much damage on a successful one.