“This sword technique is called Sword Thread, and it was created by the 6th Sword Emperor!” The Sword Spirit spoke slowly. “Sword Thread refers to compression sword qi repeatedly like the process of forging a sword. The iron is ceaselessly compressed, and the more it is compressed, the greater its quality would be. The Sword Thread technique follows the same principle! Moreover, you can utilize the Nether Ghostflame in the same way. The more adept you become at controlling it, the ...