The dragon is symbolically referring to the imperial family and today, the Emperor of Zhou and Yong dies, plunging the whole world into chaos
Azief on the mountaintop release his breath as that sword strike he just performed uses his pure energy that manipulates Laws and Concepts and is not something he have in abundance right now.
But he still executes that two strikes, that pierces through space and time and arrives at the two imperial palaces to take the two heads of the Emperor
The reason was because he promises the Three Devils of Han. This is the promise he made toward the Three Devils of Han.
The Three Devils of Han were framed by the Li family, the imperial family of Yong dynasty.
Thy wanted revenge but they are not capable. Instead they wanted to kill Old Dragon Li as recompense.
Azief made a promise to them that if they serve him and his disciple, he would fulfil their wish and kill Emperor Li.
See you in a couple fo minutes. The next chapter would be the last chapter for the mass release.