With his cloning skill able to replicate his own body to perfection, Luke was practically outnumbering his target with himself - a terrifying scene of a hundred elven princes glaring down upon a startled god.
Only Lucifer was completely calm, he hadn't moved or dropped his defense the entire time. He simply glared at Luke with amusement, he had dropped his mask of rage and hate, revealing his true face.
Watching his own subordinates turn against against one another, he felt not even an ounce of rage or mere displeasure. He only felt amused, amused at Luke's actions and how funny it was.
Would turning a body against itself render chaos and discord? Of course it will, a body fighting against it's own self is not more than bemusing to watch and was truly a branch of chaos… But, it wasn't pure.
Although the body would be against itself, the head and the surroundings in order would be able to create a stable environment for the stabilization of the body.