User blog comment:Jan10KH/Thank for the help but.../@comment-5912280-20140727030952

You shouldn't give up hope. At least try one last time?

Despite Estia being a special unit,it is not worth using your gems on. Save them for the rare summon. I managed to get Estia at 121-130. It seems like chances are higher if you defeat her quickly. But that's just a theory.

But look on the bright side. If you captured xenon,you can try and catch her again during the prologue!