Tabitha Smith aka BoomBoom

Power: can create little balls of energy that detonate
Tabitha Smith used to be part of the X-men. She loves to play pranks on virtually everyone. At least one time she was playing around and someone got hurt. Along with all the jokes, she loves to use her powers. It seems like she will do anything just so she can use them. Her and Kurt both being pranksters formed a close friendship. But after an incident involving her father, she thought it would be better if she was apart of the Brotherhood.