Your companion can shed its physical form and possess another creature.
Benefit: Once per day, bonded creature can merge with another creature’s body. This ability is similar to a magic jar spell (caster level equal to your associated class level), except that it does not require a receptacle. To use this ability, your bonded creature must try to move into the target’s space which does not provoke attacks of opportunity. The target can resist the attack with a successful Will save (DC 15 + either your Cha modifier or your bonded creature’s Cha modifier). A creature that successfully saves is immune to the same bonded creature’s ability for 24 hours, and the bonded creature cannot enter the target’s space. If the save fails, the bonded creature vanishes into the target’s body.