Re-evaluation Magic

Re-evaluation Magic (化成魔法 Kasei Mahō, lit. Change Magic) is a form of Caster-Magic that allows one to change the properties of opposing Caster-type magics, within limitations. The creator of this unique magic is Akatsuki's Olivia Petrillo.

Description
A unique type of magic, which manipulates the atoms in the general makeup of the opposing spell; this only works if the spell in question is elemental in nature. There, upon a mere touch, the user releases a pulse of her own magical energy, which reverses the composition of the opposing spell, causing it to become that of the element which is its polar opposite. For example, a fire spell would become water in nature. While this seems next to useless as the spell can still inflict damage, Re-evaluation Magic's true strength lies in being able to change the caster's elemental magic into that of the opposing element, meaning if they possess Fire Magic for example, they can also have Water Magic.

Trivia

 * The magic was created by User:Perchan, all credit goes to her.