"Purple Crystal Stone!"
Seeing the black-purple object, Mo Yu could not help curling the corner of his mouth into a smile. He had not expected that a casual stroll to kill time would lead him to such a good thing.
Purple Crystal Stone was an extremely rare high-grade refining material. It usually appeared alongside Black Crystal Stone, but it was exceedingly scarce. Its appearance was almost exactly the same as Black Crystal Stone's. Anyone unfamiliar with it would certainly find it difficult to distinguish between the two.
Fortunately, as an Artificer Grandmaster, Mo Yu knew all kinds of materials in great detail and had not overlooked it.
Purple Crystal Stone was one of the primary materials for refining the Fire Restraining Cover. Speaking of the Fire Restraining Cover, one had to mention the growth of the Vermilion Bird Sky-Burning Thunder.
After deciding to devour the Myriad Beast Spirit Flame to bring the Vermilion Bird Sky-Burning Thunder to its Peak Stage, Mo Yu's meticulous and cautious nature had made thorough preparations to ensure everything went smoothly.
The Profound Thunder was not a thing of the Dou Qi Continent. Using the Profound Thunder to devour a Heavenly Flame was an extremely terrifying matter. The Profound Thunder and Heavenly Flames were both exceedingly violent, and both possessed terrifying destructive power.
Although the Myriad Beast Spirit Flame ranked relatively low and had yet to mature into its Peak Stage, there would certainly be many difficulties and dangers in having the Profound Thunder successfully devour and refine it.
Therefore, Mo Yu had also made some special preparations to increase the success rate of the Vermilion Bird Sky-Burning Thunder devouring the Myriad Beast Spirit Flame.
And this Fire Restraining Cover was a rather important part of those preparations.
The Fire Restraining Cover was a special weapon