There was no doubt that Motan was the one who had provided Yu Chen with this strategy against Kanglan. His motive was simple - he thought it was not a bad idea for the former to gain more combat experience. After all, the identity of a saintess was extremely sensitive. Though it came with countless advantages, it also provided almost no opportunity for Yu Chen to have much combat experience, which isn't necessarily a good thing for a player.
Moreover, Motan wasn't convinced that Yu Chen had no chance of winning, so long as she had the right tactics...
It would naturally be impossible for an ordinary priest to defeat a ranger of the same level in a one-on-one battle, especially when it came to a more high-end player like Kanglan. After all, healing professionals are just that - healing professionals. Even a highly skilled warrior-priest or justice-priest could ultimately find themselves beaten to death, let alone a Priest of the Dawn Church who barely had any offensive Divine Arts.