It's not that Emperor Xuejian is weak. Emperor Xuejian created the 'Reincarnation Style' when he was in the World Realm, and used this to break through and become a Dao Lord. If he were in the Sword Tower Forest, he would be recognized by the Sword Tower if he created the 'Reincarnation Style'! With this level of swordsmanship, one-step Daojun can even compete with the more ordinary Two-step Daojun through breakthroughs....