Two-Weapon Fighting

ActionXPHBp. 2132024SRD

When you take the Attack action on your turn and attack with a Light weapon, you can make one extra attack as a Bonus Action later on the same turn. That extra attack must be made with a different Light weapon, and you don't add your ability modifier to the extra attack's damage unless that modifier is negative. For example, you can attack with a Shortsword in one hand and a Dagger in the other using the Attack action and a Bonus Action, but you don't add your Strength or Dexterity modifier to the damage roll of the Bonus Action unless that modifier is negative.

Raw data
{
  "name": "Two-Weapon Fighting",
  "page": 213,
  "time": [
    {
      "unit": "bonus",
      "number": 1
    }
  ],
  "srd52": true,
  "__prop": "action",
  "source": "XPHB",
  "entries": [
    "When you take the {@action Attack|XPHB} action on your turn and attack with a Light weapon, you can make one extra attack as a {@variantrule Bonus Action|XPHB} later on the same turn. That extra attack must be made with a different Light weapon, and you don't add your ability modifier to the extra attack's damage unless that modifier is negative. For example, you can attack with a {@item Shortsword|XPHB} in one hand and a {@item Dagger|XPHB} in the other using the {@action Attack|XPHB} action and a {@variantrule Bonus Action|XPHB}, but you don't add your Strength or Dexterity modifier to the damage roll of the {@variantrule Bonus Action|XPHB} unless that modifier is negative."
  ],
  "seeAlsoAction": [
    "Attack|XPHB"
  ],
  "basicRules2024": true
}