The last sword of the Six Invincible Swords is called the 'Sacrifice Invincible Sword'.
This sword actually involves burning one's entire lifetime of Inner Qi to wield it.
In the fleeting instant when it is used, he can stand invincible.
The Sword Qi turning into Sword Gang allows him to possess a defensive power even greater than the Immortal Golden Body. Besides, the Sword Qi he slashes out will have its power increased by tens of times during the 'invincible' period.
Using this sword also signifies that Miyamoto Muteki has made a desperate decision.
Lin Dong naturally discerned the cost required for this move from his opponent.
He calmly said: "It seems you have long been prepared to face death."
Miyamoto Muteki laughingly said: "Naturally. In the Martial Alliance War, our entire Yinghua Country Martial Union lost to you. At that moment, I had already died."