A heavy ax made for battle, like the Franchesca or Viking Ax.
Charge
The weapon is suited for an impetuous charge. It is possible to do a running move and still attack, as long as the move is in a reasonably straight line.
Great Blow
A Great Blow is a powerful all-out attack. It always requires two hands, even with a weapon that is normally used one-handed. It receives a +3 bonus to your damage, but you cannot do anything, such as an ActiveDefense, until your next shot comes up.
Great Blow does not combine with Bash.