Adrastea

A mechanical weapon made out of the fusion of ancient special techniques and the power of magic. It performs well on the battlefield, and its tough track is able to run through rugged stone strewn areas with ease. This weapon is structurally simple in comparison to other ancient weapons, which allows it to self-repair itself very quickly. Because of this, the adrastea needs to be completely destroyed to the point it can't be repaired in order to defeat it.