Two Weapon Flurry

Unparalleled mastery over handling two weapons at the same time gives you the following benefits: 

• While engaged in Two weapon fighting whenever you make an attack with your main hand weapon, you may make an attack with your off-hand weapon. This increases when you gain the "extra attack" class feature, you may attack additional times with your off-hand weapon. This feature can not be used with heavy weapons.
• Off-hand attacks don’t add your ability modifier to the damage of attacks made, unless that modifier is negative as these attacks count as engaging in two-weapon fighting.
• You can draw or stow two one-handed weapons when you would normally be able to draw or stow only one.