The Harlequin Builders concern themselves with infrastructure. They are the foundation on which the order can build its works, and they glorify their philosophy with the works of their hands. A builder's strength is immense and his capacity for labor is boundless. While most devote themselves to architecture and building glorious temples, nearly as many are split between the other craft disciplines.

The Builders are sturdy builders and skillful artisans. They find their tradition superior because their works endure, exemplifying their values long after they pass on.

The Builders emphasize craft skills. As well as mastering at least two mortal crafts, each also usually studies some more esoteric craft, especially as he advances. They continue the novice martial arts training in a style that emphasizes an enormous tetsubo as a form weapon.