Your spirit companion lashes out, leaving an aura around your foe that exposes a previously hidden weakness.

Encounter   ✦     Implement, Primal, Spirit
Standard Action      Melee spirit 1

Target: One creature

Attack: Wisdom vs. Will

Hit: 2d6 + Wisdom modifier damage. The target gains vulnerable 10 against one damage type of your choice until the end of your next turn.

Published in Dragon Magazine 385, page(s) 39.