Thread of Time

A legendary treasure born from the River of Time, which contains the law of time. It can extend the lifespan of mortals/low-level cultivators by over a thousand years. For Great Ascension beings, it has the incredible effect of delaying heavenly tribulations—postponing minor calamities by over 500 years and major calamities by over 100 years. It can be innate (from the River of Time) or后天 (acquired/refined), such as from the core of an Asura Spider.