The fight seemed tame, but that was because they were in an open space, and because one side was avoiding total engagement.
If they had been in the coliseum that was still under construction, some of the blows that Lucas dodged would have done more damage than a demolition team could have.
As he felt the dip in temperature, Lucas sighed a little to himself. If only he had mastered the way to use the cold in his flesh, he would have had one more way to push Estrella deeper in her frustration. Unfortunately, he had not found back that sensation from when he freed himself from the underground room on the path.
To really let go, one needed either control, not absolute, but still at a high level, or an extreme emotion.