Chromatic Knife

You create a shard of prismatic crystal and fling it at one creature within range. Make a ranged spell attack against the target. On a hit, the target takes 1d10 piercing damage. Hit or miss, the shard then explodes. The target and each creature within 5 feet of it must succeed on a Dexterity saving throw or take 2d6 damage. as determined by the table below.

Roll a d8 to determine which color affects it.

1. (1) Red. Fire damage 

2. (2) Orange. Acid damage

3. (3) Yellow. Lightning damage

4. (4) Green. Poison damage

5. (5) Blue. Cold Damage.

6. (6) Indigo. Thunder damage

7. (7) Violet. Psychic damage

8. (8) Special(all). Force

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the chromatic damage increases by 1d6 for each slot level above 1st.