Roaring echoes from ancient caves and hollows accompany your spirit companion's attack, infusing your allies with vitality.

At-Will   ✦     Implement, Primal, Spirit
Standard Action      Melee spirit 1

Target: One creature

Attack: Wisdom vs. Will

Hit: 1d8 + Wisdom modifier damage, and each ally adjacent to your spirit companion gains temporary hit points equal to your Constitution modifier.
Level 21: 2d8 + Wisdom modifier damage.

Published in Player's Handbook 2, page(s) 121.