Runic Blast

Celestial (runomancy) 7th level

Casting Time: 1 action
Range: 60 feet
Components: V, S, M (a 200 PO rainbow opal that spell consumes)
Duration: Instantaneous

You unleash a burst of pure runic energy in a straight line. Creatures in the area must make a Dexterity saving throw. On a failed save, they take 9d6 disruptive damage; on a successful save, they take only half that damage. This spell affects all targets in the line, including enemies, allies, and objects. The injury caused by this damage cannot be healed by nonmagical means.

At Higher Levels. When you cast this spell by spending Mana points equivalent to a spell of 8th level or higher, the damage increases by 1d6 for each spell level above 7th level.