Hardening Magic

Hardening Magic (硬化魔法, Kōka Mahō) is a Caster Magic which allows its caster to harden anything he or she may desire.

Description
Hardening Magic a type of Magic which allows it's caster to harden anything he wishes. As such, this magic is great for defense, and offense. When hardened, the object in question does not take on a new appearance, nor does its properties such as weight change, for only its hardness changes, thus making something as fragile as ice, as hard, or even harder than metal.