Dungeons and Dragons is the worlds most popular roleplaying game.
Why? Because it's easy to enhance your games by expanding on the games core rules to enhance your game.
Weapons are more than just objects that adventurers carry to stab, slice, or break enemies with. In the proper hands of a master, they can be powerful tools to gain the upper hand against an enemy. A weapon perk is a special skill or technique that can be used with a specific weapon. This allows each weapon to feel unique among all of the options the adventurers have, and hopefully give them their own identity.