Samurai deck.
To be more specific, it's Bicycle Samurai. It's unique in that it's one of the few designs created by Sam Hayles that was not produced by Big Blind Media as a Karnival deck. In fact, I think it might be the only one without BBM.
Thanks Don, I was at work posting from my phone for that reply. Thats why it was so short. Not that I would have provided such an expansive answer had I been at home on my couch. Or, for that matter, if I were in fact Sam Hayles.