The reason why he had decided to let the juniors set up the formation was because he had considered the fact that their strength was limited and that they wouldn't be able to injure Dongguo Xuan and deepen their hatred. On the other hand, Dongguo Xuan wouldn't be so heavy-handed to the juniors because of his status.
However, when the first elder made the battle agreement, he did not expect that Dongguo Xuan would actually advance to the heavenly venerate level after the Chu clan was sealed for a few hundred years. It was a good thing that he was willing to suppress his strength to the peak of mystique venerable rank.
"Let's put an end to the grudges between the Dongguo clan and the Chu clan today!" Dongguo Xuan flicked his sleeve and said to Chu Qing Hong,"do it."
"Set up the formation!" Under Chu Qinghong's command, eight disciples of the Chu family and Yan fangting set up a sword formation, surrounding Dong Guo Xuan in the middle.