Shared Burden. As a reaction you may use the save bonus of your paired rings wearer. This effect can only be used once per day.

Shared Bond. The wearers of these rings gain +1 to AC when within 10 feet if each other.

Shared Fate. When one wearer of the rings drops to 0 hit points, the paired rings wearer must roll a DC12 will save or be stunned for one round. 

Notes: Stunned, This pair of rings requires attunement by two seperate entities, and if unattuned the pair crumbles to dust