C579 Why Don't You Just Call It Random Refining the Blade

"The toughness of the Mystical Sun Saber is related to the material called Thousand Autumn Iron."

Su Ge pondered silently. "Thousand Autumn Iron is a key factor in the characteristics of the Mysterious Sun Saber. If one lacks it, then one can only change the characteristics of the Mysterious Sun Saber."

While thinking, Su Ge picked up a white object that looked like soft mud