The "Empty Vessels" ARE able to contain Demonic Flesh. They can contain LESS than a Saint and are likely unable to reach the same level of power that the current Saints have achieved.

However, this is not as important as the fact that they can be produced rapidly, with very little cost. For the first time the only restraining factor is the amount of Demonic Flesh on hand!

They are also VERY volatile. They have all been equipped with "Halos".

Field testing in a remote location is recommended.

-Classified Notes from Scientist Priests delivered directly to the High Angel