Brawn Armor 2014
Armor, rare
This armor was crafted from the hide of an ancient grizzly bear. While wearing it, you gain a +1 bonus to AC, and you have advantage on grapple checks. The armor has 3 charges. You can use a bonus action to expend 1 charge to deal your unarmed strike damage to a creature you are grappling. The armor regains all expended charges daily at dawn.
Source: Vault of Magic (Kobold Press) · License: OPEN GAME LICENSE Version 1.0a details