One-handed A one-handed weapon, also called a onehander is a weapon that can be used in conjunction with a shield. (While a two-handed weapon can not be used with a shield.) It can be placed in either of the two hand slots and the shield is placed in the other. Most one-handed weapons are lighter then there two-handed counterparts, but this comes at a cost of a lower Def or Atk, some times both. (This is not a hard and fast rule but it the general rule.) You cannot have 2 one-handed weapons in your hands at the same time.