Don't people realize how much a crowd of 100 people is?
It's essentialy that-
That's what the poor silver back has to deal with, but now they are all men.
It depends. Is she usually acting like that? I think that's the most important part. The sex of the characters doesn't play much of a role here; it's the personality and generally established behavior.
We're speaking of teenagers here; everything goes. Boys or girls, both can be, let's say...
A skin-tight adaptive force field (visible or not) that mimics the properties of the weapons and doesn't do anything else, maybe? It avoids a lot of problems and can be tweaked to have set limitations and potential for growth and such.
Or something of that nature if you want the MC to remain as...
That power make me think of Soul Eater where the people can be the weapons themselves, turning body part into blades, guns and the likes.
Like the MC absorb a sword and can turn his arm into the blade, or his entire body into the weapon. From there it just depends on what limits you want and...
Those last three sound like curses to be honest. But as said, the given value of useless depends on the person. It's hard to make a real useless power
Gonna give it a try, not much effort would be put-
Bamboozle
Useful: Telekinesis (only on self and items ranging in weight from a grain of...
Okay! Since there was the mention of roast beef... But you don't look particularly appetizing. Kind of a waste in both case I suppose.
Or there's that -