Unforgettable lessons

Fan Cai, still dazed, reached out for the amulet. Even without touching it, he could already feel the substantial changes to it. His touching it was a way to confirm he had not hallucinated the whole thing.

"It seems stronger and purer," he absentmindedly muttered as he felt the energy swirling within it. Over the years other than using the amulet to hide his identity and mask his age, it also served another purpose. The amulet served as a training tool for him. It helped him deepen his understanding of the four elements he controlled. However, two years ago when he felt the energy wane a bit, he stopped using it. 

Now sensing the energy within, he could tell it was even better than what was there originally, and by a few levels at that.