Potion Maker's Assistant Examination!

Inside Locke's residence.

Locke looked at the two gems before him and fell into thought. On the table lay a jade gem—a deep blue diamond. He had synthesized it from two Level 6 Deep Blue Jades and a Level 6-quality diamond.

Locke saw its description: [Deep Blue Diamond, a variant of Deep Blue Jade found only deep within underground mineral veins. Created when Deep Blue Jade devours raw diamond ore, this mutated version of Deep Blue Jade possesses mana-filtering capabilities more than ten times greater than those of Deep Blue Jade. Its durability also far surpasses that of Deep Blue Jade. A single Deep Blue Diamond can stabilize its owner's mana and produce a filtering effect,

reducing the user's mana fluctuations to an unimaginable degree.]

Locke used a diamond necklace to conceal this special gem, placing the Deep Blue Diamond within the special space on the inner side of the necklace.

Unless mana was actively injected into it, there was no way to detect anything unusual about this gem. After all, it was essentially a mana-filtering container.

Thus, Locke did not need to worry about anyone discovering it.

Locke tried circulating his mana, and his expression changed slightly. "With this Deep Blue Diamond, my mana stability is several times higher than before. I can practically make my mana obey my every command."

Locke tried using Magic Flame techniques. The greatest difficulty for an Assistant Potion Maker lay in skillfully using Magic Flame and smoothly switching between elemental fire sources during a single brewing process. One had to be able to switch proficiently between at least five kinds of Magic Flame before one could reliably brew Assistant Potion Maker-level potions.

During this process, mana stability and precision were the most important things.

Locke snapped his fingers. First came a fourteen-hundred-degree Wood-Element