Originally Posted by
SeeDRankLou
She knew exactly what she was doing. She was using the Eidolons she extracted from Garnet to take power of the many regions of the Myst Continent, and maybe the more after that. She wasn't doing it for the reasons Kuja wanted her to do it, but she was doing it of her own accord. Kuja didn't make Brahne do anything, and he didn't manipulate her into doing anything that she wouldn't have done on her own had she already had the tools and advice Kuja provided. He just pointed her in the right direction, it was her that actually did what she did, and for her own reasons.
It was the way that she acted in the beginning of the game that made me not question if someone else was behind it. And it's not that Kuja was actually behind it, it's more like Kuja was her advisor, she was the one doing everything. He just reaped the benefits.