The rarity of Armor of Eternal Reign is Rare, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Armor of Eternal Reign is a skin for Wraith King. The skin was added to the game on February 24, 2014, it was created by SIRAX.
Armor of Eternal Reign has been recently added to the game, which makes it rather popular with the game community.