Sigma recovered some energy with the breathing… enough to swing the sword again and split four enemies in half. Most of the experience went to him, but a good amount also went to his skill, which leveled up several times.
When Sigma took another deep breath, he recovered even more energy, and then his body felt even lighter. Shyona saw all that and showed a puzzled look… she imagined that Sigma was still far from reaching his true potential. Still, she didn't imagine that he would unlock a bit of it during such a fight.
The situation only snowballed further from that point onward. He didn't get tired, and he got even faster once he realized that he had forced his body to adapt… Thanks to that, he saved one hundred skill points that would be necessary to learn Stamina Restoration under normal conditions.