Crescent Transformation (3.5e Maneuver)

You use the transmuting power of the moon to change your opponent from angry barbarian to mewling kitten.

You may either use this as a touch attack, or as part of a melee attack. On impact the creature must make a Fortitude save or transform into a helpless animal as if afflicted by baleful polymorph. Unlike baleful polymorph, you must make a Control Shape skill check as part of this maneuver. Your result is the maximum number of HD you can affect with this ability.

This is a supernatural maneuver. It requires access to natural or magical shapeshifting.