[@Arista] Cs is great! The only thing missing is which type of shifter she is. 


If she is an empathetic shifter she can embody emotions - which really leaves you with a lot of creative freedom as to what she turns into that really matches the emotion. 
Like she could have a close friend and she could transform into a swordsman ( like a swordsman from a legend) and use a weapon shifter as their weapon. 
Other ideas would be like transforming into something dangerous when she's mad. Etc.

Weapon shifters can transform an arm, a hand, etc, into a weapon. They can also transform their whole body into a weapon to be used by someone else. 

Lastly, she could be an animal shifter, allowing her to transform into various animals. This can also work part of the way, without forcing the shifter to change their whole body. (taking the eyes of an owl, the claws of a bear, the ears of a rabbit).