Fighter/7th/Darknut

Darknut Armor

Starting at 7th level, you become able to enhance medium or heavy armor you can wear. You can do so over the course of a long rest if you have access to smith's tools. Armor you have enhanced is called “darknut armor.” While you wear your darknut armor, you gain two benefits:

• Whenever you take damage other than poison or psychic, you can lose stamina points instead of heart points. For each stamina point lost, you lose 5 fewer heart points.
• If a spell or magic effect specifically targets your armor (as opposed to you), you have advantage on any saving throw against that spell. If the spell does not allow a saving throw, you are afforded a Constitution saving throw to ignore the effect of the spell on your armor.

Your darknut armor is designed for your body and combat style. No one else gains these benefits if they wear the armor.