Demagihr has two powers which made him a very dangerous foe. One was his ability to create spatial rifts, whereby he would step in and out of his surroundings and then reappear somewhere else. The other was was a fusing gas that merged things together. In the Creation War, a team of Covenant heroes found him separated from the main body of his forces. This was planned by Demagihr. He knew the gung-ho Geryon would fall for the bait. The Covenant soldiers were saved when Demagihr's gas merged three of them as one, giving them the power to defeat their adversary.