Sword / axe / spear / cane / sword / sword with both hands, Would be 2 x the normal weapon's attack power.However, on the one hand already does not activate and not to the State.
Sword / ax / spear / wand / sword / sword By with both hands, attack power of the weapon is two times the normal. However, it is not a state in the nest one hand, the effect is not triggered.
With a sword or axe and spear and sword Katana stick with both hands weapon, attack power is two times larger than normal. However, at the one hand, and not in a state not put into effect.