This was a insta-kill that could not be explained with any humanly possible speed. Before this match, there were people that tried to use dimensional space as a reason to explain this. However, that was clearly not the case, as the surveillance equipment present in that match showed no traces of any spatial fluctuations!
Whoosh...
With a speed faster than the incoming sword tip, Mo Wen took a step back and did a reverse plank.
The sword tip whooshed past his face.
Having missed, Carolyn twisted her wrist around. Although her forward momentum had come to a stop, the runic sword in her hand proceeded to chop down!
Bang!
2 iron-like palms clapped together fiercely, forming an iron vice-like clamp onto the runic sword that was inches away from chopping down onto his face!