Refinement Cauldron

Refinement Cauldron is Long Hair Ancestor's rank-eight refinement path Immortal Gu House within Lang Ya blessed land. Lang Ya land spirit can use it to assist refinement and, under suitable conditions, forcibly refine enemy Immortal Gu. (Chapters 878–879)

Integration with Lang Ya blessed land

The cauldron's core Gu remain in Lang Ya blessed land even when other formations imitate part of its structure. The land spirit merges the house into the blessed land itself, expanding the aperture's space and turning the environment into a broader refinement arrangement. This integration increases reach but also exposes the cauldron when the blessed land is invaded. (Chapters 879, 972, and 1074)

Refinement Cauldron is damaged during the conflicts over Lang Ya blessed land and later repaired. Its design remains influential: Fang Yuan's Four Elements Square Regret Blood Refinement Pool combines principles from several houses and formations, including Refinement Cauldron and the Long Hair refinement path formation. (Chapters 972–981 and 2077)