Shaitan Earthblast (Combat)Modifier
With a forceful stomp you release a blast of acid from the earth to burn your enemies.
Benefit: While using the Shaitan Style feat, as a standard action, you can spend two Elemental Fist attempts to unleash a 20-foot column of acid that has a 5-foot radius and erupts from a point of origin within 30 feet of you. Creatures caught in the column take your unarmed strike damage plus the acid damage from your Elemental Fist and are staggered for 1 round. A successful Reflex save (DC 10 + 1/2 your character level + your Wis modifier) reduces the damage by half and prevents a target from being staggered.
Essentia: The DC increase by +1 / Essentia, the Radius by +5ft / Essentia and the column by +10ft / Essentia