C267 I will Die for You
It was a high-grade Heaven Rank martial skill created by the owner of the Tian Luo Palace, the Heavenly Soul Emperor.
Although there was a difference of one level between the Locked Life Needle and the Imperial Seal, it would be completely different if the Martial Emperor was to use it.
Furthermore, Feng Ge was only using the power of a Martial Saint to execute the Imperial Seal