Ning hadn't realized how correct his words would be when he had said that it would be a long day.
Fighting continuously throughout the day for 13 hours was not something he liked very much. He would've likely not minded it if there was some training involved, but no, there was none.
It was all just fighting. To Mercy, who was his main opponent, fighting was training.
From time to time when he used a weird skill or did something that impressed Mercy, she would come up to him and ask him to teach her.
But with a few words of teaching, she would get bored and ask him to fight again. 'I learn better when I'm fighting,' she had said.
Mercy, unlike her sister, wasn't a dual awakener. Just an Enchanter. Still, that knowledge didn't look like it bothered her.