The Pneuma is an experimental model based on the basic design ethos first explored with the Z-A Kosmos. Instead of being focused on extreme close range, the Pneuma is meant to dominate the battlefield as a heavyweight, mid-range commander. Despite its increased scale, large ovoid vernier engines allow it a great deal of mobility, making it an intimidating machine to face--even more so when you take into account the fact that its heat glave has been affixed with a pump-action rocket launcher.
The Demiurgos is a Pneuma variant.