Ding Huan's poison deployment may not be entirely without traces, but with his method of weaving poison through the Heaven and Earth All Things Law, even the most advanced World God might not perceive it.
As for Xuan Jincheng, he is merely an ordinary World God.
During cultivation, the poison was completely undetectable as it fully covered the Taoist Rhythm within the body.
However, Ding Huan has always controlled the outbreak of this poison.
To deal with a World God like Xuan Jincheng, one must be cautious and careful. If Xuan Jincheng discovers the poison prematurely, it might all come to naught.
That's how he dealt with Qian Xun before.
Qian Xun was only at the Divine Monarch Realm, and he was an injured Divine Monarch. Ding Huan barely expended any effort in deploying poison.
Ten days quickly passed, and Ding Huan felt he had been somewhat conservative.
Being conservative is risking, and this is definitely not a mistake a cultivator skilled in poison should make.
