curse technique : abyssal merchant, the user exchanges functionality of a body part in exchange for a cursed spirit, the entity refer to as the merchant appears dwelling in the cursed realm it plucks a curse spirit of equal value to the body part traded, the strength of the cursed spirit is dependent on how valued the body part being traded is to the user.

Curse technique reversal: the user exchanges cursed embodied cursed spirits in exchange for explosive functionality of the body part, the amount of improvement/strrngthening is dependent on the grade of the curse spirit

curse technique: mass destruction, the user can switch the mass of any two things or entities with cursed energy.