When you make a melee weapon attack using any action or reaction, and are wielding two Light melee weapons you are proficient with, you can strike with both weapons as one attack.
Make a single attack roll. On a hit, roll the damage dice of both weapons and add your ability modifier to only one of them. Choose one of the two weapons: its Weapon Mastery property applies to this attack.
You can use this feature for each melee weapon attack you make, provided both weapons are within melee reach.
You can’t gain any extra attacks from the Light property on the same turn you benefit from this feature.
When you use Second Wind, you can activate one Dual Blade Art instead of regaining hit points. You gain temporary hit points equal to 1d10 + your fighter level.
Only one art can be active at a time. It lasts 1 minute or until you fall unconscious.
You can now use Dual Strike while wielding two melee weapons with which you are proficient, as long as one of them has the Light property. You can’t use this feature if either weapon has the Reach property.
Additionally, you can now gain an extra attack from the Light property even on the same turn you benefit from Dual Strike.
At the start of your turn, you can switch your active Blade Art to a different one. No action required.