At this moment, the Immortal that the Blood River Realm had transformed into also felt Qin Feng's powerful attack.
The power of an Immortal was a combination of their physical body and energy, allowing them to remain in a state of immortality. At the same time, even if there was only a sliver of energy left, their attacks could not be discounted. It was still the power of a Immortal.
It was just like the video games that Qin Feng knew of in some of the peaceful realms. Even if a character had only a sliver of health left, they could still unleash 100% of their combat power.
However, Qin Feng had used his remaining energy to shake an Immortal.
This was a challenge that transcended realms.
However, there was nothing impossible about it.