Rui would be lying if he said that he wasn't looking forward to fighting the dark elves. Adaptively evolving against nature was one of the things on his to-do list. He didn't just want to integrate them into his Martial Art, he wanted to test how well he could do against the dark elves.
Of course, he was also mindful of his status as a guest delegate, so he couldn't take it too far.
For one, he couldn't use the Gu; that was too much. He also couldn't use any of his more destructive attack powers, and he needed to make sure that he didn't critically harm any of the dark elves; otherwise, he could destroy the relationship between the dark elves and human civilization.
What he sought to do was learn about the dark elves and show them what Martial Art was like, since he had no doubt that the dark elves were also curious about the Martial Path. If they were truly unwilling to have him fight some dark elves, they would intervene.
STEP