Almost immediately after Ji Yuan had rained down his One Dividing Sword into a devastating line of black sword energies and killing many, he began to flash down with a startling speed at the platform below where thousands of cultivators were waiting for him.
He had actually used his One Dividing Sword as an extended divine sense for him to check if there were actually hidden profound arrays that he could not see or sense from above.
As usual, he was being quite cautious as he felt that it was impossible for his enemies not to lay a trap for him.
Another reason why he had used his One Dividing Sword first was because he wanted to increase his killing intents for his Million Swords Domain that he had readied.
This was also to steel his heart in the battle as Ji Yuan lacked the killing intentions to use his sword domains effectively as he was never a bloodthirsty cultivator.