The burden of a weapon is how many hands it takes to wield it. Weapons are either one or two-handed. When you take a weapon, you’ll also fill up a number of hands equal to its burden on your character sheet. If you can’t bear the burden of a particular weapon because your hands are already full, you can’t equip it.

You’re welcome to create a character with any number of hands you wish, or wield a weapon using something other than your hands; however, when tracking burden, each character mechanically has two (and only two) appendages capable of weapon-wielding.