Spontaneous Free-for-all.

His movements were measured and precise, fluid and skillful. He could elongate the claymore to give it a longer reach but he is out of momentum for any upward movement. Besides, it was unneeded. His opponent is already dying after chaos flames began burning in his guts. 

Aeternus pulled the claymore out and responded to another attack. A demoness with a club wanted to take advantage of his situation to smash him into a pulp. He increased the weight of the claymore as he used the side to deflect the club. The demoness was surprised by the strength of the feedback that she felt from the brief contact. She didn't expect so much strength from such a small body. Then she slipped forward.