Hey guys, new here. Found this info on another site:
The Imperator does not battle in her normal priestess-styled regalia, but changes her costume to one similar to that of the Murakumo units, with a giant, floating ring resembling a thunder god drum behind her called the Yasakani no Magatama. Her Drive is called Sharin (Exodus Arc). By pressing the D button, the Imperator activates the Yasakani no Kakon, acting as a stance switching mechanic in the same vein as Izayoi. While in this stance, the Imperator can fire projectiles at the opponent with directional inputs and the D button, and gains several new moves and abilities at the cost of not being able to block. Her Overdrive is called Zekkai (Arc Force), and it gives her the ability to block while in Yasakani no Kakon stance.
Been waiting since Continnum Shift for this :P
Would've preferred her Imperator outfit, but this one isn't as kinky as the Murakumo units, if a little familiar. Maybe DLC like with Noel.
All we need is Jubei and maybe Trinity and this roster is perfect.