(But she's basically using lightning, a la dark side of the force, right? Lightning is dangerous, and saying that she can change the very nature of lightning is kind of OP. If you don't mind, I'm going to post as if it's regular lightning)

The intense heat of the lightning causes the snow around the three girls to melt into water. The electricity then travels through the water and into the bodies of the girls, electrocuting them and them all to lose consciousness.

The clone of Anthony looks up as John catches up to him. He grins as he says, "Look at the big, strong jock, coming to beat up the 'defenseless' nerd. 'Tis a tale as old as mankind. Unfortunately, I don't wish to deal with you." With that, the eyes of Anthony's clone begin to rapidly cycle through their possible colors, releasing a flurry of emotions at John. 

The intensity and constant change in his emotions causes John to fall to the ground. He curls into a fetal position, hoping that the hell he was experiencing would just end.

(feel free to have Jack defeat the clone of Anthony. You'll have to make him do it fast though, or he;ll succumb to the same torture that John is going through)