Magma Magic

Magma Magic is a meta-elemental magic school that focuses on creating and manipulating magma. As it can be imagines, it is extremely deadly magic that also have a noticable defensive potential. After all it is hard to stab a person who hides behind a wall formed from really hot molten rock.
This magic lacks a non-daemonic 'summons' of Ice Magic and Clay Magic, and also requires a lot of magic power. It has also a surprising level of self-inflicted (by accident) deaths, mainly due to the mental profile of people whom this magic tends to draw in. Mainly - people not exactly brilliant and lacking attention to notice details (which is a combination of traits of Fire Magic and Earth Magic.
Not to mention that they tend to die because of a mana defficiency that long, and inacurrate bombardment. Since accuracy tends to be a problem too.