Armor (plate), very rare
This suit of armor is reinforced with aurichalcum, also known as ancient gold. While you're wearing it, any critical hit against you becomes a normal hit. If the armor normally imposes disadvantage on Dexterity (Stealth) checks or has a Strength requirement, the aurichalcum version of the armor doesn't.
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: Stealth Disadvantage: Remove, Immunity: Critical Hits, Speed Reduction: Remove, Combat, Warding, Str. 15 Required, Stealth Disadvantage