Adapting Wrath

This armor was forged by the Azer for a Legendary Dwarf after she requested an item to assist her in waging war against a red Greatwyrm, on the condition that she would do some favors for them, one of which includes to forfeit the gems of the Greatwyrm's hoard to them.

The armor has a property to temporarily restore the health of the wearer. By drinking the spilled blood from the user, it utilizes the iron in their blood to forge spikes which hold their shattered body together to prolong the use of it. 

Bloodthirster:
While wearing this armor, you gain procedural benefits to your armor class the more injured that you become. The AC of this item is (18/19/20/21). At full HP, your AC is 18, at 3/4 HP, your AC is 19 at 1/2 HP, your AC is 20, and at 1/4 HP, your AC is 21.

As a reaction to taking damage, you may gain Temporary HP based on the amount of damage you've taken. You may use this feature a number of times equal to your proficiency bonus. At the end of the combat encounter, you take any remaining Temporary HP as Direct Damage and lose the Temp HP. If you were to fall unconscious from this damage, you would gain a stack of exhaustion.

Unleashed Potential:
Whenever you hit on an attack roll, you may choose to roll an additional damage die. You may use this feature a number of times equal to your proficiency bonus. You take the damage of the extra die whenever you use this ability.

Iron Staples: 

When you would be reduced to zero HP while wearing the armor, It keeps your body in fighting shape. You may take your actions as normal while rolling death saves. If you were to succeed your Death Saves, you would come back with 1 HP and a level of Exhaustion. During the time of which you are rolling death saves, creatures have advantage against you.

Plate consists of shaped, interlocking metal plates to cover the entire body. A suit of plate includes gauntlets, heavy leather boots, a visored helmet, and thick layers of padding underneath the armor. Buckles and straps distribute the weight over the body.

Notes: By any character with heavy armor proficiency., Str. 15 Required, Stealth Disadvantage