Teresa retrieved a diminutive, diamond-shaped green crystal from her waist pouch, which glimmered with an eerie green aura.
"What on earth could this be?" Limon inquired, taking the crystal gingerly from her hand.
Teresa reiterated, "Whenever the degeneration process fails, the entire corpse is reduced to ashes, and only this peculiar thing remains. It's rather strange. On the battlefield, it can absorb that mysterious evil energy autonomously, yet it appears to possess a certain threshold."
"Could it potentially be some sort of energy storage apparatus?" Limon mused, having a hunch that this crystal might hold significant value. However, their current lack of understanding regarding the evil energy precluded them from exploiting it effectively.
"Have you endeavored to test it multiple times?"