Dust - she's a character with so much depth it's insane. Having a strong sense of morals, it adds to her character and how she will respond and act in certain situations. That and her powers in an alternate universe were seen to of become combustible somehow.
Blindfold - her vast psonic powers are still being revealed, with hints of telepathy being alluded to. Add that to the fact that she appears to be a powerful precog with a mysterious past and her bother too.
Armor - she has been shown to certainly have potential to become an X-Man and she has been trained by Wolverine, making her capable of holding her own.