Fairy Tail 11

[DarthEnderX]

I feel like you're making a lot of unsupported assumptions.

[Kraco]

I feel like you're making a lot of unsupported assumptions.

Uh... Right, of course I am. Your (and Bill's) point: Kagura was getting weaker. Period.
My point: She was getting weaker because... [Theories.]

You could see how much Mermaid trusted and counted on her. She was also the 5 points leader. So obviously she couldn't be a total pushover but something happened to make her weaker. Nobody else in this story has the misfortune of having as much experience fighting impossible odds and great villains to save the world as Fairy Tail, but some of the other guilds still have decent people.

[DarthEnderX]

So obviously she couldn't be a total pushover but something happened to make her weaker.

Yeah, it's called bad writing.

She was fighting Erza, and Erza always wins just because. All any protagonist in Fairy Tail has to do to win any fight is want to.

Which, obviously, that's common in most shonen, but is particularly egregious in Fairy Tail. Characters just get beat up until they get around to deciding they don't want to lose. And then they just win for no reason.