Chaos dart

make a ranged spell attack against the target dealing 1d8 on a hit.

After rolling damage roll a d8 and consult the type table 

(type table)

1 acid 

2 cold

3 fire 

4 force 

5 lightning

6 poison

7 psychic 

8 thunder

The damage increases by 1d6 when you reach 5th, 11th, and 17th level.