Battle Focus

Prerequisite: Level 4+

You gain the following benefits:

Ability Score increase: Increase one ability score of your choice by 1, to a maximum of 20.

Battle Focus: As a Bonus Action, you can enter a special trance known as a Battle Focus. It lasts for 10 minutes, or until you choose to end it (no action required.) While in this Battle Focus, you gain the following benefits:

• Once per turn, you can reroll one attack roll, potentially turning a miss into a hit.
• As a reaction, when an enemy hits you with an attack roll, you can gain a +3 bonus to your AC, potentially causing the attack to miss. This bonus lasts until the end of your next turn.
• You gain a bonus to the damage rolls of your spells equal to your proficiency bonus + your spellcasting ability modifier.

You can enter this trance a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.