Chaos Sphere

A 20-foot-radius sphere of opaque, swirling psychic energy forms at a point you choose within range and lasts for the duration. The sphere is opaque and lightly obscures the area within it. The minds of all creatures within the sphere are assaulted by disorienting static and fragmented thoughts.

Psychic Aura: Any creature that starts its turn in the sphere or enters the sphere for the first time on a turn must make a Wisdom saving throw. On a failed save, the creature takes 2d6 Psychic damage and has disadvantage on its next attack roll before the start of your next turn. On a successful save, the creature takes half as much damage and suffers no other effect.

Bonus Action Attack (Prismatic Bolt): You can use a bonus action to direct a volatile bolt of pure chaos at one creature you can see within the sphere or within 60 feet of it. Make a ranged spell attack. On a hit, the target takes 4d6 damage. The damage type of the bolt is randomized, determined by rolling a d8 on the Prismatic Damage Table below:

At Higher Levels: When you cast this spell using a spell slot of 5th level or higher, the damage for the bonus action attack (4d6) increases by 1d6 for each slot level above 4th. The damage type is rolled only once for that attack's damage.