Fan Casting Choice of Two Weapons in Sort by Tropes

A great many characters take one weapon and stick with it. This makes a lot of sense, seeing as you often need a lifetime of practice to be fully proficient with a weapon. Training with more than one would just leave you weak in both areas. That said, some heroes decide that flexibility is better than specialisation, realising that however skilled they are in their current field, a sword is still going to lose to a bow at long range, so it's a good idea to have a bow in reserve. This makes them something of a Red Mage when it comes to fighting, as they can do two things at once, making them very flexible fighters.