Despite whatever all his other characteristics may convey, Ernordeth Puer-Irae retains the air of a person that is confident, if not arrogant. Minor (and often, major) things in his body language - his walk, his stance, his expressions - reveal these feelings. At times, it seems he borders upon narcissism, especially judging from how much he enjoys his own company.

Through a combination of preparing, studying, and analyzing, Ernordeth Puer-Irae creates detailed battle plans and tries to think two steps ahead of the enemy. At times, however, this can lead to Ernordeth Puer-Irae creating complicated schemes that can baffle less intelligent subordinates.

Ernordeth Puer-Irae is extremely cocksure and headstrong. Possessing a keen wit and exceptional level of intelligence, Ernordeth Puer-Irae will often use his superior intellect to humiliate lesser minds. Basically, he is kind of a jerk, and that can sometimes get Ernordeth Puer-Irae in a bit of trouble.

While generally laid back and more than happy to offer a quip of sarcasm, Ernordeth Puer-Irae's entire demeanor changes once combat begins. He becomes focused and quiet, with his smile replaced with a look of grim determination.

Ernordeth Puer-Irae seems to get his thrills, perhaps sadistic ones at that, from toying with his opponents. Some are content with simply striking down or injuring their opponent, but that is not enough for Ernordeth Puer-Irae. No, he wishes to see his enemy descend into madness or kneel before him as a blathering mess; or even better, as a fresh new servant with a muddled mind. The Puppeteer usually forsakes outright hurting and maiming his opponent and focuses on illusions, mind tricks, and other wicked means of destroying a person.

Ernordeth Puer-Irae is utterly devoted to success in combat, no matter the mission, no matter the cost. He has spent his life building himself in the image of war, utilizing a dogmatic regimen that has lead him to a single-minded obsession with military success and requires intense physical and mental training. This training, however, has come at the cost of anything resembling empathy or concern for others - even his superiors and subordinates.