The Ata'mal crystal was an artifact of naaru origin bestowed to the eredar of Argus. Now shattered into seven shards, which have become lost over the eons, the shards are seen as both symbols of holy Light by the draenei - eredar who escaped the corruption of the Burning Legion - and as potential weapons of immense power by both the Legion and the servitors of the Betrayer, Illidan Stormrage.