Fast Attacker

You have learned to attack more rapidly.  You gain the following benefits:  

• When you take the Attack action, you can make one additional attack as part of the same action.  This extra attack can be used in addition to extra attacks granted by other class features.  
• When another creature allows you to make an Opportunity Attack, you can make two opportunity attacks instead of one.  
• If your character can cast spells, you can cast a cantrip in place of the extra attack.