She isn't useless. She is weak but cunning and has some resourcefull and for FUG using an irregular as a tool to manipulate Baam and other people obviously has been profitable fpr their interests.
Cunning? Ha! Khun is better than her when it comes to cunning. She's just a pawn. Just like what Gustang said. And pawns are useless. She's more so because she desperately wants to be the 'Chosen One' to the point that it's pathetic (A lot of chapters proves that). Or maybe she isn't not useless... After all, pawns are very useful sacrifice.
Lol true! I've never even seen her come up with a plan on her own and idk why she manages to gather all those people under her! The creator is really trying hard to make Rachel look important for this series by giving her random power ups out of the blue without any real reason and it's only adding more to *Rachel-hate*
Exactly! And the plans that she does manage to makes either backfires, or is half-baked, or even defeated by khun or anyother character. And like the plans is so linear you could always predict what the plan is all about, in fact she says it all the time "I can use *name of character or object*"..
She's a trying hard bitch who has some malingering issues of being a manipulative psychopath and has hero complex and self proclaimed prophecies that has never been seen on any animes or mangas or manhwas before.

"RACHEL" The most useless character in this series without any power of her own and yet why the heck is she given so many opportunities for doing nothing?!!! GODDAMMNIT!!! SHE DOESN'T F*CKING DESERVE ANY OF IT FOR GOD'S SAKE LET HER DIE ALREADY (╬ ̄皿 ̄)凸