Feats

Purple Dragon Commandant

Prerequisite
Level 4+, Purple Dragon Rook or Martial weapon proficiency
Ability Score Increase
+1 Strength or Dexterity
Source
FRHoF

Encourage Ally

As a Bonus Action, you bolster one ally you can see within 30 feet. The ally gains Temporary Hit Points equal to 2d6 plus the modifier of the ability score increased by this feat. You can take this Bonus Action a number of times equal to your Proficiency Bonus, and you regain all uses when you finish a Long Rest.

Last Stand

You have Advantage on attack rolls while Bloodied.