Sure, I did Serpentor before, but that was just a guy who vaguely looked like him.
Now this...THIS...is Serpentor...
Attuma Heroclix before...it's perfect for Serpentor. All I needed was some green stuff to add the little snake details, the leg guards, and the cape.
Too bad there's not an official G.I.Joe Heroclix line. That would be pretty awesome.