God created hellhounds to be the first attempt at making "man's best friend." It didn't go well. He deemed the creatures too vicious and intended to destroy them.

Lucifer saved one, Ramsey, and she became the progenitor of the hellhounds.

Feral, mangy, monster of a thing.

That's where his mind goes when he takes in Kell's attitude, thrown right back at Lucifer. It would likely continue in a needless cycle if Kell's weakness wasn't showing through and that was, unfortunately, a sticking point for Lucifer.

He does, purposefully, ignore most of what Kell says about those left behind, as though they're still actually alive.

For just a moment he considers killing the second acolyte while the two are focused on each other. It'd be so easy. But the desire has been effectively stifled.

"The party going to the cave is much larger than us in the mountains," he says, primarily because he doesn't like being ignored, despite it being his own doing. In reality the two groups did end up closer balanced and numbers, but that's besides the point. "And made up of enough competent people." Enough that Lucifer felt a fleeting hope.