As two actions, a creature that you can touch or see within 10 meters must make a Fortitude saving throw. Creatures not composed of flesh are immune.
On a failed save, its flesh ripples, grows together, and fuss into a nearly seamless whole as it is paralyzed and is forced into a fetal position (if humanoid), with only the vaguest outline of its folded arms and legs visible below the all-encompassing wave of flesh. The target retains the ability to breathe, eat, and excrete.
A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
A shapechanger can revert to its normal form on its turn.