Aspects of the Crucible : Tail

One of the ancient Erdtree incantations.

Creates a supple tail that sweeps through foes before the caster. (40 foot cone)

Each creature in the 60-foot cone must make a Constitution Saving Throw. If failed - take 2d8 Radiant Damage (scales with level) or half as much on a successful one.

This is a manifestation of the Erdtree's primal vital energies - an
aspect of the primordial crucible, where all life was once blended
together.