La Louvre
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Fire Phoenix
Probably, you need to capture all the castles. These creatures appeared for me after capturing a castle with Illia, and naturally, the other castles were already captured as well.
Try to gather an army (I understand that it takes a long time and is tedious, but what can you do?), I read somewhere that Biara's army doesn't grow. But I'm not sure about that. Or just keep fighting Frida until you win...
Probably, you need to capture all the castles. These creatures appeared for me after capturing a castle with Illia, and naturally, the other castles were already captured as well.
Try to gather an army (I understand that it takes a long time and is tedious, but what can you do?), I read somewhere that Biara's army doesn't grow. But I'm not sure about that. Or just keep fighting Frida until you win...