Rapid Attacker

You embrace the fact that you have four arms and hone your skill in dualling a verity of weapons. You can attack twice, instead of once, whenever you take the Attack action on your turn. If you have the 'Extra Attack' feature from your class, when you partake in two-weapon fighting, you may attack twice with your bonus action, instead of just once. You can use this feature a number of times equal to your Proficiency modifier. You regain all expended uses when you finish a long rest.