Chaos Sphere

You summon a 1-foot diameter orb of pure chaotic energy floating above a point in range. The sphere is intangible and disappears when the spell ends. An aura of chaotic and colorful magic also extends in a 20ft radius sphere from the orb, spreading around corners and lightly obscuring the area with multi-colored lights. As a bonus action on each of your turns, you can cause the orb to lash out with a bolt of unstable chaotic energy toward a creature within 60 feet of it. Make a ranged spell attack roll. On a hit, the target takes 2d8+1d6 damage. The bolt attack has advantage on targets within the orb’s aura, and on a hit, deals an additional d8 damage. Choose one of the d8s, the number rolled on that die determines the attack’s damage type, as shown below.

If you roll the same number on at least two of the d8s, the chaotic energy leaps from the target to a different creature of your choice within 60 feet of it. Make a new attack roll against the new target, and make a new damage roll, which could cause the chaotic energy to leap again. A creature can only be targeted once by this attack.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases  by 1d6 for each slot level above 5th.