Seriously, this guy is one of the most interesting villains in recent memory and one of my favorite characters in comics. There are a ton of heroes he'd make a great adversary for. In the past we've seen him clash with Wolverine, Iron Fist, Luke Cage, the Avengers, the Agents of Atlas and others and hold his own. He's at the top of the charts when it comes to fighting skill as he's mastered every fighting style known to man and even created some of his own. His battles with Wolverine were some of the toughest fights the ol' Canucklhead has ever endured. Marvel, BRING BACK MISTER X!

If he appeared all the time, he would stop being a great villain. See: The Joker.

@cbishop: He hasn't appeared since Siege :(

@jake_fury: Um...so...there's a thin line between great and forgotten? :/

True that. He's a bonafide badass.

He is very good Fighter...and Bad villain...he must became more Power..a Super Soldier Formula and Healing Factor for the "Best of the Best"