Dana White is a master practitioner in verbal kung-fu. Calvin Ayre from Bodog tried to call out Dana White only to have his entire Bodog Fights shut down over night. Gary Shaw from EliteXC called Kimbo the 'Tiger Woods of MMA' and made rants against Dana White a daily routine. The guy's organization went under as well as the entire parent company, ProElite (although it was recently bought out, but then sort of just went away once again last year). Of course, we all remember Tom Atencio who set his MMA beef coordinates directly at Dana White. Former friends turned foes -- organization goes under, and foes once again turned to friends. Sounds like something off of Gossip Girl. If Dana White was an honorary member of the X-Men, his mutant power would be the ability to completely demolish your self-esteem within seconds. It's the equivalent of that scene in Poltergeist in which an entire two-story house melts and gets sucked into a black hole filled with lightning, thunder and horrible 80s special effects.
While John Prisco, the owner of XFC, hasn't formally called out Dana White just yet, he did say that all of the top talent in MMA is not in UFC and even went so far to claim that XFC will be the number one MMA promotion within five years. Check out this interview from MMA: Inside the Cage of Prisco doing his greatest impression of Nostradamus.