User blog comment:Linathan/Unit Spotlight: Beast God Afla Dilith/@comment-26231443-20150405233811/@comment-26140304-20150405235544

I think it's going to be Lucius. Chances are that she could be a 7* unit.

SPOILERS: Lucius is the final boss of the Grand Gaia arc. She appears in the Bariura region, which is the map Global is getting after Atharva (the upcoming map). The reason why she is the main antagonist of this arc is because she sent you (the summoner) to kill all the Four Fallen Gods in order to gain power from them and take over Grand Gaia.