C1651 Black Stone in Hand

Gu Xuan was a little agitated.

If this black stone really was a Hung Meng Element Iron, then he would have struck gold.

Just ten fingernail-sized Hung Meng Element Iron s would be enough to raise a Heaven Slaughter Sword to the level of a Profound Opening Spiritual Treasure.

If this piece of black stone was cut, it could at least split into a hundred pieces.

This way