The Shogun is essentially a warrior/mage. This is a soldier that has learned to focus their Chi energy in such a fashion as to cause supernatural effects such as super jumps, throwing small whirlwinds, or setting their sword on fire. They are often given to some focus or code that makes them excel as a Magical Warrior combination.
The Shogun is the highest form of the Samuraii path, having fully mastered all the abilities of their inner Chi. They are able if they wish to use an arch type weapon.
They can wear D2 armor but always use a two-handed weapon or a pair or weapons. Shogun are adept at dual wield. A Shogun may choose 3 weapons to be proficient in. They are allowed a bow, though they are more effective with a specialized form of training in close combat.
The Shogun trains his/her body to function in perfect unison with the world around them. That includes whatever weapon he or she may use. As a result they become master of their chosen weapons.
It is not uncommon for a Shogun to possess elemental abilities. In such a case then they would attune themselves to a certain element and gain mastery over that element just as they would over their chosen weapon.