Yellow Thunder Crystal

A rare crystal that holds the power of light. It has the ability to gather and release the elements in the atmosphere. During the great war, the Magus Empire of La Riiz tested this crystal's possible military applications, and prototypes were eventually sent to the battlefield. It is said that the crystals bursting with magical power were released and the enemy burned, but all of the Magus Empire's frontline soldiers were killed, too. Since then, the magic research laboratory has kept one Yellow Thunder Crystal to remind them of their folly.