If we ever name ZV-307c I propose that the name should be taken from greek mythology. Phobos, Deimos and Harmonia are all siblings in Greek mythology, and Nike is the greek goddess of victory. To remain on theme for the region we should really pick another figure from greek mythology.
A good naming candidate in my mind would be Ares - Phobos is the god of fear (of war), and Ares is the god of war (and courage), making them somewhat counterbalances to each other. Another possibility would be Eris, goddess of strife and discord.