Within her barrier, the contractor's successful melee attacks deal an extra 1d6 energy damage. The energy type must be one that the contractor can apply to her beam (so fire is always an option; if the contractor has the holy beam perk, she can select positive energy). This extra damage does not stack with extra damage from weapon special abilities, and is not multiplied on a critical hit. The contractor may select this perk multiple times, each time adding 1d6 of another energy type to her melee attacks within her barrier.