Bloody Black Gold

Bloody Black Gold was the best material for forging not only Sword Souls but also any other top-class weapons.

However, the most valuable aspect of Bloody Black Gold was that it was a unique ingredient used to forge Sword Souls.

The minimum number needed to forge a Yang Sword Soul was ninety-nine pieces of Bloody Black Gold. A warrior needed to travel all over the world. It took years, even dozens of years, to dig up enough Bloody Black Gold. Thus, a piece of Bloody Black Gold was actually worth more than a million gold coins.