Ethereal Blast

A bolt of bluish white energy pulses from your fingertips in a line 5 feet wide and 50 feet long. This only damages creatures in the ethereal plane or creatures ethereal in nature (e.g. a creature using the blink spell or a ghost), forcing a Dexterity saving throw. On a failed save creatures take 3d10 force damage or half as much on a success.

This bolt passes through corporeal barriers, though not ones that extend into the ethereal plane, such as those created by certain spells. It should be noted that this spell does not confer any special ability to see or detect ethereal creatures.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d10 for each slot level over 2nd.