A large Mobile Armor (MA) with a mechanism for transforming into a Mobile Suit (MS), the Regnant was made by the Innovades that called themselves the Innovators. The Innovators' development of large MA equipped with multiple GN Drive Taus started with the deployment of the prototype GNMA-Y0001 Empruss to collect live combat data, and based on these data, the Regnant was developed. The leader of the Innovators, Ribbons Almark, then gave the completed MA to A-Laws' pilot and sponsor, Louise Halevy, who he had placed high hopes on. The Regnant's MA form is suitable for long-range cruising and high-speed combat, while its MS form is suitable for melee combat and anti-MS battle. It primarily engages in aerial and space battles, but can also participate in ground battles using its humanoid MS form. In fact, based on its design specifications, it is possible for the MS form to walk under gravity despite its top-heavy appearance, and this is thanks to the effects of the GN Particles produced by its GN Drive Taus.[