From Guild Wars 2 Wiki
Spirit Weapons are ghostly weapons which attack enemies or give benefits to allies. They use an ammo count system that replenishes on a separate, longer recharge than the skills' recharge after use. Spirit weapon skills are utility skills.
List of spirit weapon skills
|Bow of Truth||4||½||1||Spirit Weapon. Command the Bow of Truth to barrage a location with healing arrows.|
|Hammer of Wisdom||4||½||8||Spirit Weapon. Order the Hammer of Wisdom to knock down your foe.|
|Shield of the Avenger||3||½||1||Spirit Weapon. Command the Shield of the Avenger to form a protective dome, and then shatter, flying out to weaken nearby foes.|
|Sword of Justice||2||½||1||Spirit Weapon. Will the Sword of Justice to appear beside your enemy and attack nearby foes.|
- Eternal Armory — Spirit Weapons gain additional casts, improved count recharge, and burn foes they strike.
- Spirit weapons would be summoned for a set duration, auto-attacked enemies and chained into command skills prior to the August 8, 2017 update.
- Command skills would destroy their spirit weapons prior to the September 9, 2014 update.
- Spirit weapons couldn't be directly attacked prior to the January 28, 2013 update.