You can become a paragon of battle. As a Bonus Action, you can gain the benefits below for 1 minute or until you choose to end them (no action required). Once you use this feature, you can't use it again until you finish a Short or Long Rest.
Martial Recovery
At the start of each of your turns, you regain one expended Battle Die.
Deadly Strike
When you hit with a maneuver, add an extra Battle Die to the damage roll without expending it.
Deft Maneuver
You gain a special additional Bonus Action that you can take once on each of your turns. You can take this special Bonus Action only to use a maneuver.