Xanathar's Guide to Everything , pg. 151
Chaos Bolt
1-level
Evocation
Casting Time 1 action
Range 120 ft
Duration Instantaneous
Components V, S
Damage Type: Acid
Saving Throws: Ranged
Description: You hurl an undulating, warbling mass of chaotic energy at one creature in range. Make a ranged spell attack against the target. On a hit, the target takes 2d8 + 1d6 damage. Choose one of the d8s. The number rolled on that die determines the attackās damage type, as shown below.
d8 Damage Type
1 Acid
2 Cold
3 Fire
4 Force
5 Lightning
6 Poison
7 Psychic
8 Thunder
If you roll the same number on both d8s, the chaotic energy leaps from the target to a different creature of your choice within 30 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 be targeted only once by each casting of this spell.
At higher levels: When you cast this spell using a spell slot of 2nd level or higher, each target takes 1d6 extra damage of the type rolled for each slot level above 1st.
Class(es): Sorcerer