When the war turned in Heaven's favor, he was always the first to spearhead the most daring assaults into the Burning Hells. Over the aeons of the Great Conflict, Imperius tread where other angels did not dare. Solarion, his spear, can be called to his side at a moment's notice. Imperius's abilities include teleportation, the ability to render other angels silent with a mere gesture and telekinesis. Imperius even calls Diablo his 'old enemy' durring his siege of Heaven. Imperius and Diablo appear to be archenemy's as Diablo is the Lord of Terror, the opposite of Valor. Myriam Jahzia also foresaw that his hatred for the Nephalem will grow even stronger after Malthael was defeated by their hand. When not in battle, Imperius often strategizes and trains other warrior angels in the Halls of Valor, his personal domain in the High Heavens. He possesses a strong hatred of humanity - Diablo's assault on Heaven has only added to that hatred, both because it was only made possible by Leah and because the Nephalem succeeded in defeating Diablo where he himself has failed. He has had many arguments with Tyrael that could only be put to rest through Auriel's intervention.

However, Imperius's valor has come with the flaws of pride and arrogance, and when enraged, he may become reckless beyond reason. His valor is so firm that he can withstand terrors of his archenemy Diablo, even those that no other angel can.

The mere sight of Imperius is enough to embolden angels with valor and strength. Imperius's tactical brilliance encompasses all facets of warfare, from maneuvering armies on the battlefield to leading covert strikes against Hell's outposts.

Diablo 3 imperius wings