Weapon and Claw Arts
How the game itself explains this system.
Bracers and Weapons with Weapon and Claw Arts offer unique ways to deal damage on a Cooldown. Weapon and Claw Arts deal increased damage and may have additional effects. They differ from item to item. Experiment to find those that suit your playstyle.
Press Block + Attack to trigger Weapon and Claw Arts.
A Weapon Art from a Weapon can be performed only while using that Weapon, while a Claw Art from Bracers can be performed only while fighting with Claws.
On a keyboard
The game words this differently for keyboard and mouse.
Bracers and Weapons with Weapon and Claw Arts offer unique ways to deal damage on a Cooldown. Weapon and Claw Arts deal increased damage and may have additional effects. They differ from item to item. Experiment to find those that suit your playstyle.
On Story and Fair difficulties press Block + Attack to trigger Weapon and Claw Arts.
On Challenging and Duelist difficulties, press Block + Attack + correct direction input with to trigger Weapon and Claw Arts. The direction depends on the item and can be checked in the Inventory.
A Weapon Art from a Weapon can be performed only while using that Weapon, while a Claw Art from Bracers can be performed only while fighting with Claws.