Convergent Lens

You form a focal lens over the area of effect, causing the damage dealt to creatures in the same area to be redirected to yourself. Each creature in that area, including yourself, makes the saving throw as normal. Sum up the damage those creatures would have taken, including yourself. You make make a Concentration Check against the DC of the original ability. If you succeed, you take half of the total damage. On a failure, you take the entirety of the total damage.