The power to decrease muscle mass of oneself or others. Sub-power of Muscle Manipulation. Opposite to Muscle Mass Enhancement and Muscle Tension Refinement.

Also Called

  • Atrophy
  • 0 Muscle Mass
  • Muscle Mass Reduction/Retraction


The user can decrease the muscle mass (all or only certain muscles) of oneself and others, removing any physical abilities pertaining to muscle, such as strength, speed, stamina and durability.



  • Overuse, use without proper training, or use without the proper anatomical adaptations may render target's body weak.
  • Users of Condition Retention are immune.

Known Users

  • The Moon (Adventure Time)
  • Sasuke Uchiha (Naruto Shippuden: Kizuna); via Chidori Senbon
Community content is available under CC-BY-SA unless otherwise noted.