Primordial Stage 2: Boon of Elemental Surge - Fire

You can channel pure elemental energy into a concentrated bolt of an element of your choice. As a Magic action, you can use any of the following option:

Flame Wave. Each creature in a 15-foot Cone originating from you makes a Dexterity saving throw against a DC equal to 8 plus your Constitution modifier plus your Transformation Stage. On a failed save, creatures in the area take Fire damage equal to 2d8 plus your Constitution modifier. Increase the damage by 1d8 for each Transformation Stage above 2.

You can use Elemental Surge a number of times equal to your Constitution modifier, regaining all expended uses upon finishing a Long Rest.