Source: The Book of Many Things

Armor (breastplate), rare (requires attunement)

This burnished copper breastplate looks as if it were made of interlocking gears. Merchant’s scales are emblazoned across the chest.

The armor has 4 charges. You can use the charges in the following ways while wearing the armor:

Equalize. When you or a creature you can see within 60 feet of yourself is about to roll a d20 with advantage or disadvantage, you can expend 1 charge and take a reaction to prevent the roll from being affected by advantage or disadvantage.

Expunge Imbalance. As a bonus action, you can expend 2 charges to cast the Lesser Restoration spell from the armor.

The armor regains 1d4 expended charges daily at dawn.