Amon never knew the exact grade of the Xian Cloth. Now, he knew. The Dark God mentioned this ceremonial dagger matched Kui Mang's cultivation level. Runic-grade weapons were indeed the preferred weapons of Martial Realm Cultivator.
He drew the demon energy from his black energy core. A dark aura swirled around his body as he injected the demonic energy into the ceremonial dagger. The thin black smoke oozing out of the dagger's black blade intensified. The black smoke became so thick that it turned tangible. The blazing black smoke made the dagger look like a longsword.
When he slashed the dagger, a portion of the black smoke split and rushed toward the direction of the slash. The black smoke sliced into the ground a distance away and caused a long gash.
Amon slashed the dagger a few more times. Each slash produced a slice of black smoke that struck distant targets. The black smoke only vanished when he stopped transferring his demonic energy to the dagger.