Cyber Realm

She raised her sword, visible threads of energy followed like updrafts, and gone, with nothing more than a single swing, the entity split, smashing on either side of the arena walls. 

 "Victory for the Valkyrie!" they cheered.

 "On the honor of the god of battle, may your soul be saved from eternal sufferance," she dug her blade into the ground and pressed her hand in prayer.

 "Strong," Eira mumbled, "-she's very strong. Who is she?"