Ring is an item classes for Artifacts and should not confused with The One Ring.
Though Rings are played and used much like possessions, they are a different card type. Rings are not affected by cards that affect possessions.
Three Rings for the Elven-kings under the sky,
Seven for the Dwarf-lords in their halls of stone,
Nine for Mortal Men doomed to die,
One for the Dark Lord on his dark throne
In the Land of Mordor where the Shadows lie.
One Ring to rule them all, One Ring to find them,
One Ring to bring them all and in the darkness bind them
In the Land of Mordor where the Shadows lie.”