As two actions, you create a vertical wall of whirling, razor-sharp, blades within 20 meters that last for the duration. The wall can’t occupy the same space as a creature or object, provides three-quarters cover to creatures behind it, and its space is difficult terrain. A creature that enters the wall’s area for the first time on a turn or starts its turn there must make a Reflex saving throw.

On a failure, it takes 6d6 slashing damage.

On a critical failure, it takes twice as much damage.

On a success, it takes half as much damage.

On a critical success, it takes no damage.

Augment

You can increase the damage by 2d6 for each additional mana expended.