I think he's referring to the Concept Artwork Ki-Adi Mundi figure that came out in the ANH wave of the Red/White Legacy Collection - around here, he's pretty easy to come by, I think he would have probably done better as a figure if they had put him in the slot that was taken up by the Concept IG-88 in the ROTS wave and then put IG-88 in the ESB wave and used the AT-AT driver as a Vintage figure in August - since it would only make sense that you could buy the AT-AT and the driver at the same time. But hey, what do I know?