After Klein extracted his souls, he didn't care who had the Golden Firestorm Saber in their hands. He directly opened the forging system and began strengthening the Endless Sword.
Klein placed the Endless Sword on it and threw 50 souls into it. The strengthening machine began to move, producing a whimpering sound.
Soon, the strengthening was completed. A white light flashed, and the Endless Sword successfully +1.
Klein took out the Endless Sword and checked his attributes.
Under the attack column, he actually received a percentage increase in true damage.
Although it was only a tiny 1%, it still depended on who had it.
In Klein's hands, this 1% true damage was a terrifying number.
As for the other attributes, they didn't change.
Klein continued throwing the Endless Sword to strengthen.
[Strengthening successful: Endless Sword+2]
[Strengthening successful: Endless Sword+3]
[Strengthening failed: Endless Sword+2]
