Invoke the Elements

You summon an aura of shimmering heat, flurrying snow, crashing waves, or swirling wind and lightning.

For 1 minute, you gain Concealment against creatures more than 5 feet away, and any creature that ends its turn within 5 feet of you suffers 1d12 (2d12 at level 13, 3d12 at level 17) of the chosen type damage (basic Reflex save using your class DC or spell DC, whichever is higher).

At 13th and 17th level, this damage increases by 1d12.

A veil may changeling deals fire damage, a snow may changeling deals cold damage, a brine may changeling deals bludgeoning damage and the effect gains the water trait, and a virga may changeling deals electricity damage.