How can he be played?
Persistent provable facts are his enemy. “Play” him with the truth, which is always the downfall of narcissists and for that matter marxists.
Elaborating, this would be Alinsky tactics reversed. Find the target, freeze it and persist with the legend, which in this case is the truth about who he actually is. The distractions from this would be quite large, and cannot be contained. Duplicity is a powerful observation when finally understood by the general public.