"What's this?" he asked curiously.
Thompson explained softly:
"An attributeless energy crystal, one of the fundamental materials of alchemy, able to store and transform various elemental energies. Alchemists often use it as a core material to construct various alchemy devices."
Ron observed the crystal in his hand curiously, feeling a subtle energy fluctuation emanating from it.
"For beginners, this type of crystal is an excellent tool for practicing elemental manipulation."
Thompson continued: "It can intuitively reflect whether your spiritual power output is precise."
Ron carefully channeled his spiritual power into the crystal, which immediately lit up with brighter purple light and began to vibrate slightly.
"Very well controlled," Thompson praised:
"Now, try to guide this energy in a specific direction—imagine it forming a vortex within the crystal."
