Armbands of Toughness

While wearing these armbands, you gain a +2 bonus to AC if you are wearing no armor and using no shield. Once a day as a bonus action you can channel the power within the bands to gain +5 Temp HP. When active, the engravings gain a dim glow, and the wearer’s arms are covered in a translucent magical sheath. When this energy is hit, it emanates around the creature. You can invest hit dice or other appropriate class resources (like ki points, rage, or spell slot), as an action, to add an additional +5 Temp HP per point, and with each point spent, the glow of the engravings grows brighter. Temp HP lasts 8 hrs. Limited uses to your Proficiency modifier per long rest.

Notes: Bonus: Unarmored Armor Class, Warding, Wristwear