Two-Weapon Mastery

Your dual-wielding combat prowess has been honed to mastery, granting you the following benefits:

• If a feature such as Extra Attack allows you to make multiple attacks using the Attack action, this benefit also applies to attacks you make with your off-hand weapon using the Two-Weapon Fighting action.
• When you use your reaction to make a weapon attack, you can make an off-hand weapon attack as part of the same reaction.
• You gain a +1 bonus to AC while you are wielding a separate melee weapon in each hand.

("off-hand" refers to the hand you would normally use to make a weapon attack as a bonus action when you engage in Two-Weapon Fighting.)