Fighting Styles
Two-weapon Fighting
When you fight with two weapons (see the rules for fighting with two weapons), you gain the following benefits instead of the normal rules for fighting with two weapons for you:
You can add your ability modifier to the damage of the additional attack you make when fighting with two weapons.
When you make an attack with a melee weapon you are wielding in one hand, you can make an extra attack with another melee weapon you are wielding in another hand. You can make that attack as a bonus action when you wield any one-handed weapon and you can make the extra attack without having to spend a bonus action if the one-handed weapon has either the light or the small size property. You can still only make an extra attack for fighting with two weapons once on each of your turns.
When you make an opportunity attack wielding two melee weapons, you can make two attacks as part of the opportunity attack if the target is within both weapon’s reach - one with each weapon.
