[Wrathion doesn't answer back right away, instead observing his snack of choice. He picks up one of his own to examine with an eye that is far too critical, flaking at its crust with the tip of a clawed gauntlet.

It is set aside shortly after in favor of offering his new acquaintance with a disarming grin.]

I'm afraid I have not. That does not mean I would not be interested in hearing more of it, however. What does a "Core world" imply?