Chaotic Lightning

You hurl an undulating, warbling mass of chaotic energy at one creature/object in range. Make a ranged spell attack against the target. On a hit, the Target takes 2d8+1d12 damage. Roll 1d12. The the number rolled on that determines the attack's damage type, as shown below.

1. Acid
2. Bludgeoning
3. Cold
4. Fire
5. Force
6. Lightning
7. Necrotic
8. Piercing
9. Poison
10. Psychic
11. Radiant
12. Thunder

If you roll the same number on both d8s, the chaotic energy leaps from the target to a different target of you choice within 30 ft 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 target can be targeted only once by each casting of this spell

At higher levels. When you cast this spell using a spell slot of 3rd level or higher, roll an additional d12 and the target take 1d6 of that damage type per level slot.

Example: casted at level 3  it only hits one target it takes 2d8+1d12 of 1d12 type damage and 1d6 of 1d12 type damage