However, although Xu lingchong didn't really intend to cut ties with this master and disciple pair, if it was really as Shangguan LAN 'er said, and the powerful newcomer of the welcome Pavilion they were looking for was really Lin Yi, then there was no harm in using him.
With the master and disciple's attitude of asking around the world, the only possibility was that this person was their mortal enemy. If they could confirm that it was Lin Yi, then he wouldn't even need to worry about it. These two would go after Lin Yi themselves. It was easy to get someone else's help to kill him, why not?
More importantly, it was rare for Shangguan LAN 'er to personally ask him about it. Putting aside the fact that this matter would be beneficial to Xu lingchong, even if there were no benefits, he would definitely agree to it in order to please this Junior Sister of his, LAN' er. It was impossible for him to reject her.