Masters of Arms focuses on unusual weapons and those who master them. Combination maneuvers give you lots of different ways to devastate things while defensive maneuvers give you something to do while the monsters try to eat you. All the classes are designed with maximum flexibility and customizability in mind and most of their special abilities can double as new feats, so that those who don't wish to specialize in a prestige class can still expand their library of actions. For gamemasters the Alpha Beast provides a convenient way to upgrade a monster for close in fighting, whether using claws or teeth or tentacles. And the telekinesis master can make fighting demons a very different experience.