Each level of the Undying Sword Body was harder to advance than the last. From the tenth level to the eleventh, it required absorbing the essence of one Supreme Treasure Sword. From the eleventh to the twelfth, it required the essence of ten Supreme Treasure Swords. To rise from the twelfth to the thirteenth, one had to absorb the essence of at least a hundred first-grade or second-grade Supreme Treasure Swords. If not for the great gift he had obtained this time, Ye Chen would have found it difficult to raise the Undying Sword Body to the thirteenth level, much less the fourteenth.
"All the Supreme Treasure Swords I have here are third-grade or above. I wonder how many swords' essences I'll need to absorb before I can advance?"
Casting aside distracting thoughts, Ye Chen began cultivating the Undying Sword Body. Sky Splitter stood guard nearby. Should any vicious beast attack, it would tear the enemy apart at any cost.
Clang!
The ground was filled with Supreme Treasure Swords. When Ye Chen activated the Undying Sword Body, the twenty third-grade Supreme Treasure Swords closest to him began to tremble. The next moment, twenty sword phantoms flew out and entered Ye Chen's body. Visible to the naked eye, another sword pattern appeared on Ye Chen's body, changing from twelve sword patterns to thirteen, Sword Qi pressing down on all around him.
"The thirteenth level is complete!"
Ye Chen exhaled a mouthful of sharp turbid air. This was the impurity within the sword essence. The higher the level of the Undying Sword Body, the more demanding its appetite became. Things that had once counted as part of the essence might no longer be considered essence now.
The thirteenth level of the Undying Sword Body was enough to withstand the attacks of a