Lucifer smiled as the metal melted...and then he heated it until it glowed, so molten steel poured over the exposed muscle of Sylar's face.

"You're right, Sam. I think this needs to be a learning experience. Something hands on." He gripped a flap of flesh and yanked, like a magician pulling a tablecloth from under a set table. It left him with what almost looked like a torn rubber Halloween mask. Which he wagged at Sylar's remaining eye, before he leaned down and blew ice over it. With no eyelid to shield it, he imagined that would be a certain kind of agony; at least, he hadn't met a human yet who'd enjoyed it.

"It's so easy to remember, Sylar. Don't touch. Just behave yourself. I'd love to stay and drive this lesson home for you, but someone needs a visit to the doctor." He stood, stretched, and snapped his fingers to send Sylar's limbs flying in pieces like shrapnel in four different directions. "Mull that over as you regrow yourself, would you? I'll be in touch."

Then he turned his bloodied attention to Sam, looking him over and assessing his injuries. "Hm-hmm, do I take you to the hospital or to my brother...?"