Your spirit companion enters your ally's body, and nothing remains of either except swirling dust.

Encounter   ✦     Primal, Spirit
Minor Action      Melee spirit 5

Target: One ally

Effect: Your spirit companion disappears. Until the end of your next turn, the target is insubstantial, and its space and any squares adjacent to it are lightly obscured.

Published in Dark Sun Campaign Setting, page(s) 92.