Lord Emperor Cassius was a masochistic entity who had achieved the peak of the Nightmare Trainer Stage through sheer will alone. He was also someone who had maxed out everything he possibly could without directly increasing his level or realms. He had even become a Demon Lord—a direct rank-up from his Archdemon Rank.
His Demon Dragon Bloodline, VoidWarper Skills, and anything else that could've been advanced had been advanced. You see, during his time in the Challenges and even his most recent Challenge, he had been anything but idle. His innate nature—one developed by the System—would not allow him to laze around.
His killing intent and battle-crazed personality aspects may have been temporarily suppressed to cope, but everything else was as it should be.
That poison—the one hailed as an absolute killer—had no effect on him.
