You reach out and sow glittering splinters of force throughout the area, otherworldly caltrops of will and ectoplasm. The area is difficult terrain, even to flying or incorporeal creatures. Any creature that moves through the area takes 1d4 piercing damage per square traversed, with a basic Reflex save made at the end of each move action they take through the area.
Heightened (+2) The spell's area increases by 5 feet, and the piercing damage increases by 1.
Traits
An action with this trait requires a degree of mental concentration and discipline.
Effects with this trait deal force damage or create objects made of pure magical force.
You must physically manipulate an item or make gestures to use an action with this trait. Creatures without a suitable appendage can't perform actions with this trait. Manipulate actions often trigger reactions.