Since the last time Azrael had used Tyrant's Intent in the Trial Ground of the Eonrift, his spiritual power had grown significantly.
Not only had he advanced to a Class-level warrior, but he had also been practicing the Sun, Moon, and Star Sutra every single day.
With his current spiritual strength, it was no longer a problem for him to maintain Tyrant's Intent for about five to seven seconds.
However, in order to shatter the blood-red energy barrier the Two-Headed Blood Ogre had created and to empower the SkyRift Slash enough to pierce the incredibly tough bodies of two peak Epic-level monsters, Azrael had been forced to push Tyrant's Intent to its absolute limit.
As a result, in the mere three seconds it took him to execute the attack, his spiritual energy was completely drained.
Not only that, but because he had unleashed the SkyRift Slash without holding back, even his cosmic energy was bottomed out.