Maaster Sanz is a Variable Font family that explores intentional interpolation failure and variety of deformed letterforms. It consisting of three distinct font styles, controlled by two axes. The pairing of the conventional Weight axis with the unconventional Glitch axis demonstrates the duality of variable font technology, showcasing both correct and intentionally incorrect interpolation. The designer researched the causes of common font production errors to develop and apply three unique, custom interpolation principles along the Glitch axis. These principles include reversed contour direction, changed component order, and incorrect path directions, all resulting in distinct letterform deformations. This process converts an unstable, unpredictable failure mechanism into a controlled, generative design parameter, facilitating the exploration of non-traditional letterforms within a variable environment.