As if we needed more convincing to believe that Altair is one badass assassin, fighters from the Ultimate Fighting Championship rolled up their sleeves to talk about Ubisoft's Assassin's Creed (Microsoft Xbox 360, Sony PlayStation 3, PC) and why even the champs won't mess with the Bird of Prey. Real martial artists go into how Altair's realistic moves and mastery of various weapons impress those who go mano y mano in The Octagon.

Mixed martial arts champions Kendall Grove and the siblings Nate and Nick Diaz share their thoughts on Altair, who they described as "the definition of badass" and a "savage assassin." They also tell us what their favorite weapons are, and why Assassin's Creed's protagonist is too brutal to fight in the cage.

Watch the UFC veterans talk about Assassin's Creed in the video below.