As they spoke, the dust continued to move. The muscle became a leg, which grew into two legs, which sprouted talons reminiscent of a hawk or an eagle. Carrion was normally alone when he did these sorts of creations, but only because he didn't want to lose concentration. He mentally kept track of the incantations making the creature, and kept up with the conversation.
"Ah, I see. Sounds like a good thing, to be special like that, in such a world." Carrion didn't really know. Being special was difficult in his world.
He laughed at the mention of the silly doctor. "That would be amusing." By this time, the torso had formed. "Poor man would lose his mind. It's been a while since I've caused someone to go insane... besides Light," he added smugly.