While Wuying and Xiao Wen were speeding towards another bandit group that they discovered, Xuefeng was also busy with his part of the plan. He didn't want to leave Yiren and others alone in case someone attacked them, so he stayed behind while creating a clone which he could use to hunt instead.
Yiren was happy that she could protect him and he was also satisfied because he could fight his share of battles this way. They knew the bandits' plans so their main goal was to kill as many as they could, lowering their numbers in the process. They only had the three of them who could actively fight, thus it would be troublesome if suddenly hundreds of bandits attacked them all together.
This was the second group Xuefeng found and the more he fought, the more accustomed he became with manoeuvring the clone's body. Having about twenty percent of each Qi injected into the clone's body, it could do everything that his main body could.