Acid Magic is a Caster Magic related to the use of acid.
Acid Magic is a Magic which allows the user to create and control acid in various different ways, and to various different effects. The acid appears to be created from the user's fist, as seen when Neppa punched the ground and sent a stream of acid spiraling towards the Fairy Tail Rescue Team. Thus far, it has been seen to appear from the ground in a straight line, from the user's fist in a spiraling motion, and also as a horizontal tornado directed towards the target. The acid produced as a result of this Magic is extremely corrosive, to the point where it can gnaw through solid stone, and has been noted to be extremely difficult to deflect or cut, making it an ideal weapon against most opponents. In addition, Arcadios stated that this Magic, along with all of the others that the Hungry Wolf Knights employ, was specifically designed in order to kill people.