Chaos Shot

You allow the forces of chaos and chance to channel through you into a damaging form and shape that no one knows. Roll a d4. 1-spell attack, 2-dex save, 3-con save, 4-wis save. Then roll a d10, 1-acid, 2-cold, 3-fire, 4-force, 5-lightning, 6-necrotic, 7-poison, 8-psychic, 9-radiant, 10-thunder. It deals 1d8 of the chosen type. 

This spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).