Demonic Commandeer is a unique special move of Dusk Taker.
After pinning down his opponent and restricting his movements, he makes eye contact with them and a beam forms between the two Duel Avatar's eyes. It is then that he is able to steal from his opponent.
His ability allows him to steal either their abilities or Enhanced Armaments for as long as he so chooses. He is able to swap between any that he has stolen. His ability also allows him to return any of the items he has stolen from Duel Avatars. But, there are limits to how many he can carry at a time. However, it was never stated how many he could. Also, he cannot take certain abilities or armaments if they are closely attached to the owner's trauma that created it.