At least in my own characters, I consider the Shinobi Swordsman class to be directly related to the Seven Swordsmen, considering how the class is a mix of both melee and stealth- and all the swordsmen are shown to be experts in silent killing.<br/><br/>Making a land of Iron character would be easy, I think. Give them Determined Genius/Chakra Coils Disorder and have them go into the Samurai class. I know someone's mentioned this before, but I imagine the Samurai in this setting are like the Ninja in historic Japan. Their proportions are flipped.<br/><br/>Land of Iron Samurai are special in that they explicitly have developed Iaido to interrupt hand seals. Mifune went toe to toe with Hanzo (twice) who took on the Sannin in their prime. In a related note, Hanzo disappoints. :( Dammit, Kishimoto! All that potential. :P<br/><br/>There's plenty of options available for swordsmen in Naruto D20. Shinobi Swordsman, Sword Savant, Samurai, Weaponmaster, Exemplar. Heck, I even made a 'Sacred Sword' character that functioned the same as the Sacred Fist but with a sword.