Rising from the core of the world, he brings with him burning rocks of death.
So basically a rock monster or something.
magma spray: once you turn it on it sprays at your cursor doing small amounts of damage. Stays active for several seconds.
Rift: creates a straight line rift in front of him, causing units to be knocked aside and take damage. Rift is not passable.
Boulder: Creates a small boulder of magma infront of him, gets bigger until it is released. Heads in a straight line and rolls over stuff.
Earthquake: Damages every unit on the field including friendlies.