|Type||Artificial Sacred Gear|
|Abilities||Enhances legs skills|
In Volume 14, Procellarum Phantom was one of the 5 artificial Sacred Gears given to members of the Sitri group that was personally given to Ruruko, which she later used to on a mission to save the first-year members of the Occult Research Club that were kidnapped by the Magician Faction of the Khaos Brigade.
Procellarum Phantom has the form of a set of armor primarily on the user legs.
The armor can strengthen the power and capabilities on the users legs, granting them an increase in combat performance such as greatly enhanced speed and immensely powerful kicks. It can also leave behind after images of the user to confuse their opponents.
- Procellarum is the Latin word for storms.