Incubus is great.
What’s not great is the multiple instances of confusion of the word consort. A consort is a royal spouse, that’s it. Korialstraz, Alexstrasza’s consort, makes sense. The Twin Consorts, makes sense. The Twin Empyreans, does not. Renaming a mob called Concubine to Zealous Consort, again, does not make sense. Zealous Concubine, would make more sense, but just calling both mobs Zealous Paramour would make even more sense.