If your hemmed in by kobolds on all sides, you want a friend for your back! I think two fighters who know what their doing should be able to do some pretty impressive stuff. Let’s make that happen!
Back to Back
You and your friend have trained to perfection to keep each other alive. As a bonus action, you can activate this feat. If you are engaged with another ally who has activated this feat, you both impose disadvantage on any melee attacks and spells with the touch descriptor either of you receive till the end of your next turn.