Calista had already looked at the referee countless times before making that decision. From the looks of it, the match wasn't over until Rebecca admitted her defeat with her own mouth. Calista as a result hardened her heart and ordered Nadia to attack while Rebecca underwent the painful ordeal.
Nadia didn't hold back this time because she didn't want to lengthen the competition any longer. She wanted to defeat her so she didn't have to see her screaming like that.
She commanded the entire lightning element in the vicinity and her hair started to float as if charged by the overwhelming static that was converging towards her. She was using the electric charge in the air to generate lightning that she would then use to bombard Rebecca who was one step away from rolling on the ground in pain.
