Pretty much any move with "sword" "slash" or "cut" in the name, of course. I can also see them making some new attacks since Metal Claw and Shadow Claw just sound weird in the context of a sword. It could probably pull them off by lashing multiple times to give the illusion of claw scratches (like this: http://images1.wikia.nocookie.net/__cb20091212033416/blackcat/images/d/df/Black_Claw.jpg), but again, that's kind of odd.
Playing) Fire Emblem: Awakening, Guild Wars 2 Waiting) Pokemon XY
Just like there are certain pokemon that can learn most of (if not all of) a given type of move (beam, punch, kick, whatever) so to will this one be the one that most likely will have most (if not all) of its moves be slash based attacks. It might have a few moves befitting its typing (Iron Defense, some sorta fitting Ghost type move or two), but slash moves are what I'm predicting its moveset to be dominated by.