User can form (functioning) light sabers from their body.

Pros:
-user can make any style of light saber
-user can make any crystal/colour
-user can make a light saber whip
-user can use light sabers in defence or attack
-user can make light sabers that others can use

Cons:
-user must know visual of light saber style before making it
-user can't change this when its made
-user can only make this when panicked
-user will easily hurt others without light sabers
-user can only do this with what suits them

Weakness: overuse
User will overheat and burn anyone who touches them.