Draconic Blast

you gain the ability to unleash Draconic Blast (working on Eldritch Blast basis) from your hand on mouth. Invocations that apply to Eldritch Blast, also apply to Draconic Blast.

You can expend a pact magic spell slot to deal additional Fire Damage of 1d8, bypassing damage resistance. This quality increases when you reach 5th lvl in Warlock (2d8), 11th lvl (3d8), and 17th lvl (4d8).

On a Critical Hit, it has a chance to blind (Con saving throw) the Targets.