So I ripped the sword out of the mechtech and made it fit most hands with a piece of styrene.. I had no idea he had so much detail in the blade.. so I picked it out with some paint.. The Dragon head is particularly neat! Sorry for the crappy pic, but just a quick cell phone shot.
So it is... Looked like a dragon to me. Couldn't find that concept art.. thanks for pointing it out! Might have to pick out some other details on it later!