Dual Wield Marader Viable Build?

Hey im thinking of rolling dual wield murader with sword block is this build viable?

http://www.pathofexile.com/passive-skill-tree/AAAAAgEBxthYY1BQjM_2SF8_VEnnUu8Oud3Uj_IvGS42uvKc2WFXDdIhns2nMPe-Aec26LZBNJNjcO_jGNtDnMGLrOrT_HTxnrkOrSmlOlKGYFYEYVKfy9-_IWBAoO9OKLVgiFoaLIUFLWBLeu907RQgUEcYkVuv0O73o2J5FfYABmqH3Q38xWegh3ZKfTIJ