You dispatch pieces of your swarm form to drain blood from your foes to give yourself resilience.

Encounter   ✦     Beast Form, Implement, Primal
Standard Action      Close blast 5

Target: Each creature in the blast

Attack: Wisdom vs. Fortitude

Hit: 3d8 + Wisdom modifier damage.

Effect: If you hit at least one target, you gain 10 temporary hit points.

  Primal Swarm: Add your Constitution modifier to the temporary hit points.

Published in Primal Power, page(s) 47.