Gehenna

The Gehenna (ゲヘナ, Gehena), also known as the Artillery that Destroys All are the nine Sacred Gears with power that greatly surpasses that of even the Longinus, and are capable of destroying the world.

Summary
This class of Sacred Gears is specifically named after the Gehenna Atlas, the first and most powerful Sacred Gear to reach this rank, and like the Longinus, the Gehenna are utterly and completely unique, and only one of each may exist at a time. G.O.D. has stated that all Gehenna is just a combination of one ability with another. Essentially, they combine powerful abilities that aren’t supposed to be combined, and have the ability to end the world and kill even Gods, with ease.

Out of the nine, five have appeared in Jester of the Gremory Clan thus far, but G.O.D. has mentioned that similar to the Longinus, more Gehenna might be born, but they must become an Longinus first.

The Gehenna
The Nine Gehenna made by the Biblical God.

Trivia

 * The name Gehenna is based upon an small valley in Jerusalem.
 * All of the high-tier Longinus have the potential to become Gehenna.
 * G.O.D. has stated that the six-strongest Longinus, even the True Longinus are comparably weak when compared to even one of the Gehenna, as only the six-strongest Longinus have the ability to destroy the world as all the Gehenna have that capability.