Fairy Tail 11

[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.