When a master makes a move, failure is simply not an option.
As an extremely rare and top-tier Primordial Artifact Refiner in the endless spacetime, with just a slight exertion, he boosted the upgrade speed of Myriad Realms Tower by dozens, if not hundreds of times over.
"Little Yu, the flame that old bastard is using is the Supreme Primordial Purgatory Flame from the endless spacetime. Its terror is such that a single wisps can burn right through a realm of spacetime."
Chapter 1662