Bane of the Monarch, Plate Armor +3

Long ago an older rich and powerful ruler gathered all the most talented magical and mundane crafters of the time and commissioned an incredibly powerful and functional suit of armor that looked like a suit of beautiful ceremonial (typically less than fully functional) armor. This beautifully designed +3 Mithril Plate armor provides supreme protection while being light and flexible.  The armor grants the wearer resistance to fire. At dawn every day the armor magically fully cleans and repairs itself as long as it is not missing more than 25% of its material.  The King was a bit clumsy and feared falling down in public so the armor was imbued its wearer with magical steadiness, the armor provides the wearer advantage over any checks against being moved, pushed, pulled, fall (including from a mount) or made prone.

The plate armor is much lighter than typical versions of the type, also it is form fitting and magically resizes to fit its wearer perfectly.  The armor is adorned with etchings and inlays of a craftsmanship and beauty never exceeded.  The designs seem to subtly and slowly change over time to fit the wearer's personality and personal aesthetic. 

Ironically the production of the armor proved to be so costly and redirected so much of the resources of the kingdom that it weakened the Monarch's already shaky political position, fostering unrest in his rule and providing an opportunity for his rivals to force his abdication in an almost bloodless popular rebellion.  He managed to hide and smuggle out much of his remaining riches, including this armor in anticipation of his arrest by the rebellion.  Ultimately, he was caught trying to escape from the kingdom and was executed publicly.  The armor didn't resurface and has been forgotten over time, much like the ruler himself.

Mithril 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.

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, Resistance: Fire, Advantage: Saving Throws, Bonus: Armor Class, Movement, Combat, Warding, Str. 15 Required, Stealth Disadvantage