If he told others about all the secrets, he was an idiot!
If he cheated them in a perfunctory way, he was treating others as idiots!
Zhang Tie was not an idiot; neither were the other elders of Huaiyuan Palace and the clan head.
Facing these elders and the clan head of Huaiyuan Palace, Zhang Tie knew that he could barely explain it only by lip service. Therefore, he directly displayed his talents in front of the others.
People needed to change according to the situation. On the premise of not exposing the secret that he was cultivating an emperor-level secret method King Roc Sutra, Zhang Tie told the others that he had grasped a top secret method called Chaotic Treasure Body; he even accomplished the shift between Fire Dragon Sutra and Five Elements Ground-look Sutra in 30 minutes in front of the others, causing them to be speechless once again.