Thus is the reason I preferred to ask first. Though the idea of the magic can be horrifically broken I have put some limitations on it other than the touch spell range. The user cannot use the magic on themselves, the endless cycle of magic would kill them, the user is a corruption of a pure magic and is repulsed by nature, wounds becoming easily infected and exposure to elements will cause the contacted flesh to ulcerate that and a constant aura of "corruption" surrounds them much like the sickly sweet scent of plague victims. The user cannot change someone beyond the energy of their body and the recipient's combined so re-growing an arm will take the same amount of energy using the magic as it would do if humans could restore it normally so a large transformation would require either several sessions or an abundance of naturally occurring organic energy. The initial idea of the magic was to do what I consider white magic cannot, which is to restore or rather to create limbs for those who never had them in the first place and as such cannot be "healed" better. These are a few of the limitations, not including the inability to learn any other magic but the idea of the magic is second to how the side affects of having it changes the psyche of the character I very rarely have this character actually use the magic (He himself despises it).