At this moment, choosing not to immediately unleash the Black Lotus Dharma Aspect for a killing strike was also motivated by his desire to preserve the Immortal Strangling Silk.
These are all valuable magical treasures, and while they may need to be discarded at times, he would never surrender them easily if preservation was an option.
Considering the treasures he'd encountered since entering the Divine Fire Domain, was any of them things he could casually come across in the outside world?
Let alone own—ordinary people rarely even get the chance to see such treasures. Most monks live their entire lives without ever possessing half of one.
This scenario, where treasures from the Artifact Refining World were gathered in one place, was a rare occurrence. Only under such extraordinary circumstances could one witness such a grand assembly of magical artifacts.