Arcane Discharge

You fire a crakling projectile of concentrated arcane energy at a creature or object within range. Make a ranged spell attack against the target. On a hit, the target takes 1d12 + your spellcasting ability modifier force damage.

The spell creates more than one projectile when you reach higher levels: two projectiles at 5th level, three at 11th level, and four at 17th level. You can aim the projectiles at the same target or at different ones. Make a separate attack roll for each projectile.

If you roll a 1 on the attack roll, the projectile you generate is extremely unstable and detonates as soon as you fire it, causing you to take the damage instead.