"So long as I can understand it," he clarified. "It isn't just seeing it, it is knowing. In this case seeing should be enough because I have seen the inner workings of the Angel machines before so this would be more of a reminder than a new lesson."

He considered. "So long as I understand the theory, actually, blueprints or schematics would work just as well, in theory. Also summoning is not an accurate term. I would be creating it, not calling it from elswhere."