Arcane Skipping Bomb

Choose up to 4 target creatures within a 100ft cone, if each target is within 30ft of another target within that cone. You hurl an orb of unstable arcane energy towards the closest target, which then detonates and replicates, bouncing to the next target until the last target is hit. Each targeted creature must make a CON saving throw, taking 7d12 force damage on a failure and half as much on a success. Any creature adjacent to a target must also make a CON save or take 2d12 force damage.

At Higher Levels: If this spell is cast using a spell slot of 7th level or higher, you may choose 1 additional target per level of slot higher than 6th