Unstable Burst

You cast sorcerous energy at one creature or object within range. Make a ranged spell attack against the target. On a hit, the target takes 1d8 damage of a type determined by rolling 1d8: 1-Acid, 2-Cold, 3-Fire, 4-Lightning, 5-Necrotic, 6-Poison, 7-Psychic, 8-Thunder.

If you roll an 8 on a damage roll for this spell, make another 1d8 damage roll for this spell. The maximum number of 1d8 damage rolls you can make in this way is equal to your spellcasting ability modifier.

Cantrip Upgrade. The damage increases by 1d8 when you reach levels 5 (2d8), 11 (3d8), and 17 (4d8).

Add a Surge counter to your character sheet after using this spell.