Ea R'lyeh Aboleths.

[Endoperez]

Inability to get anything out of the water is enough to make them one of the weakest nations. IIRC, they don't even get Air/Water mages for Amulets of the Fish.


As far as Darth Water goes:
Wears black, surrounded by mysterious aura, has magical powers, not a human any more, wields a colored magical sword:

Bane Lord:
Wears black, has a chill aura, not a human any more, has a colored magical sword.
Alternatively, MA Agartha is the Empire. Darth Vader is an Iron Corpse Gift of Reasoned, propheted and equipped by pretender Palpatine.