Great Uqnia Shard:

The wielder may summon two Uqnia Guardians at the start of any war session, counting against their total unit cap. This artifact cannot be destroyed. Additionally, when a character first gains the Uqnia Shard, they must decide whether they are a Pylon Warden or Ravager. Gaining the following benefits depending on which they chose. Wardens - Gain moderately increased chances of success on all rolls related to protecting, or securing the pylons. - Increase one random attribute by one per Pylon that remains standing. - After securing a Pylon, gain a random powerful national effect. - Receive events related to protecting the Pylons. Ravagers - Gain moderately increased chances of success on all rolls related to destroying Pylons. - Increase three random attributes by one per Pylon that has been destroyed. The amount of attributes effected is doubled for rulers that have directly destroyed Pylons. - The wielder of this artifact gains the Slow Aging effect with no magical upkeep. This becomes the Stop Aging effect after a Pylon is destroyed. - Receive events related to destroying the Pylons.