Mithral is a light, flexible metal. If the armor normally imposes disadvantage on Dexterity (Stealth) checks or has a Strength requirement, the mithral version of the armor doesn't.

Can use a bonus action to cast Thunder Step at 3rd level with this armor once per short or long rest.

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, Combat, Warding, Str. 15 Required, Stealth Disadvantage