Domain Phaath, part of the Yuuzhan Vong's Shaper caste, was categorized as a Domain. This extremely traditional Domain adhered strictly to the established Shaping protocols, without exception. Despite their orthodoxy, they engineered the Voxyn, a creature resulting from the hybridization of the Vornskr with a Yuuzhan Vong organism called the Fero Xyn. The initial concept of intergalactic hybrid creatures came from Mezhan Kwaad, but he faced a death sentence for his heretical endeavors. Yal Phaath is a prominent individual associated with Domain Phaath.