Enhancement or Strengthening (強化 Kyōka) is a Curse that effectively enhances the target's body in a myriad of ways.
Description

Kyôka enhancing Erza's pain sensitivity
Enhancement allows the user to, as the name suggests, enhance the body of the target in ways they see fit. Though primarily used as a means of enhancing the strength of their targets (those who cannot withstand the Curse are killed and turned into a black paper dolls),[1] the Curse can also be used to enhance someone's pain sensitivity; the greater the sensory increase, the greater the pain one feels, even from the smallest of things.[2] When used upon themselves, the user is also able to strengthen themselves without limit.[3] Finally, in addition to mere enhancing, Enhancement can also strip things away from the user's foe, such as their five senses.[4]
Spells
Kyôka's Spells
References
Curses | Absorption Curse • Alegria • Bomb Curse • Calamity Curse • Demon Eyes • Enhancement • First Seal • Macro • Memento Mori • Necromancer • Second Seal • Slippery Curse • Tenchi Kaimei • Tenga Goken • Third Seal • Thorn Curse |