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[[Image:VortexGrenade.jpg|thumb|right|220px|Vortex Grenade{{Fn|3}}]]

The '''vortex grenade''' is a rare and deadly weapon which utilizes complex warp technology to create a vortex between real space and the [[warp]] on activation. They are very difficult to produce, with only the [[Adeptus Mechanicus]] manufactures them, and are not issued to regular troops, but to important Imperial agents such as Inquisitors or Assassins.{{Fn|1}}

Vortices are doubly dangerous, as once they are created they behave in an unpredictable and uncontrollable manner. They may shrink, expand, vanish, remain for long periods of time, move or even divide. For this reason, they can be as deadly to their user as their intended targets.{{Fn|1}}

==Known Vortex Grenade Patterns==

An ancient pattern that has been manufactured since the [[Great Crusade]]. This pattern has a armament rune and known expiration date. It's timer was set to >3 seconds, and the wielder should recite the Psalm of Armament before activating it. {{Fn|3}}

While normally not issued to [[Imperial Guard]] regiments, a crate was recovered that had been lost since the Great Crusade. Despite, or more likely due, to being well beyond their expiration date, the cache was issued to an unknown [[Imperial Guard]] regiment.{{Fn|3}}

==Sources==