The lightweight formation. It was considered a rather ordinary and boring formation and was typically used for moving things around a home. For the most part, it was an obsolete formation as it paled in comparison to just using a Spatial Storage of some sort, but for some sects that liked using grand and large pieces of jade or other such raw materials to create things like pillars and foundations, the formation wasn't entirely abandoned.
The main benefit of the lightweight formation was that it could be expanded somewhat indefinitely at a relatively low cost. After all, it's main usage was to move unwieldy and heavy items, one had to lay it down a thousand times to move a chunk of stone, it would be a little bit too tiring for everyone involved. But because of its expansive trait, it had a relatively unique structure, and thus had made it into the book as an example for compound layered formations.
In this instance… it seemed like this formation might work.
