Michael lashes out with a wing. It's all feather against the backside of Lucifer's head—not a serious invitation to fight, but enough to sting. His wings have the reach, and the movement lets him continue to look down on Lucifer with crossed arms, severe and unimpressed.

Real enough for you?

"You're the one talking up her power. If she cares to talk, would I be able to stop her?"

Getting him mad to get him to talk. Lucifer's as much a clever, infuriating little brat as he's ever been.

"Martyr. 'The source of all evil.' Do you think yourself the equal of the Darkness? The leviathans? What you are is disloyal and a narcissist."

He—can't exactly refute the monster comment. That is in fact a word he's thrown at Lucifer. One of the ones that he reserves for their fiercest arguments, because he knows it cuts deep. Something he might some day recognize as regret prickles at him, but not yet. Today it's just more fuel on the fire of his temper.