In the Imperial Sect's intelligence, Lu Bei had been practicing for a year and had the cultivation of the Void-refining Realm, capable of rivaling Integration Period experts.
Because the truth seemed so unbelievable, the Elder Court had doubts, even if they had witnessed Lu Bei defeating Zhan Yue Xian with Xia Yuechan and Zhu Xun assuring the accuracy of the intelligence, the Elder Court still had reservations.
It's already exaggerated for one to reach the Refining Void realm after just a year of practice, let alone overcoming an entire realm to defeat an Integration Period…
Something just didn't add up.
Taking into consideration that Lu Bei was one of Xuanyin's Purple Guards, codenamed Fox Si, and had close relations with the royal family, favored by Emperor Wuzhou - Zhu Qiyou, the Elder Court concluded that Lu Bei possessed a formidable artifact.