Battle Focus

As a bonus action on your turn, you can enter a state of extreme focus. Your attacks find their mark more often, and your opponents struggle to gain the upper hand. For 1 minute, your AC increases by 2, you gain advantage on all attack rolls, and all non-magical attacks made against you are made with disadvantage. 

As a bonus action you can choose to end this effect early on your turn. Once used you must finish a long rest before you can use this feat again.