Prerequisites: Buster device contract, proficiency with tower shields.
As a standard action, the contractor may transform her buster device into a worn tower shield and back. The contractor may do this as an immediate action instead by spending 1 point from her buster device's divine pool. Transforming the tower shield back into a weapon is a swift action. In shield form, the buster device retains its personality and all of its abilities. The shield always bears a distinctive crest aesthetically linked to the buster device's true appearance.