who's that Pokemon! its

[teganpaxton]

 

[JKim]

Prosopocoilus? Cyclommatus?

 

[The Mantis Menagerie]

It looks like my Lucanus elaphus male I had a while back. Considering @JKim did not suggest that, I think I am wrong. 

 

[Dak.the.bug]

Its Pinsir!