Z/X -Zillions of enemy X- Wiki

ε17 or Elementary 17 (Erementarī Sebuntīn) is the name given to a group of Metal Fortress specifically developed to interact with the other worlds.

Z/X Encyclopedia Entry

Metal Fortress developed to provide "positive interaction with the other worlds" in the wake of the success of revolutionary war. They normally act as racing machine for entertainment, with other world enterprises providing funds as their sponsor. Only the first machine, Gluon, has its plan manufactured ahead, and donated to the Lycanthrope village as is. It also takes part in the rescue activities during the raid of Dragon King Hall.

Because of their very unique background, it is unlikely that the plan for all 17 machines will be completed. Naturally, they can also transform and act as battle weapon in the time of emergency.


All members of this group are named after the elementary particles. Most of the members also feature the logo of their sponsor somewhere in their bodies.

Name Cost Power Elementary Particle Sponsor
ε17 Polyphase Union, Gluon 6 9000 Gluon None
ε17 Quark u 5 7500 Up Quark Deathsmith Company
ε17 Amphibious Transformation, Muon 4 6000 Muon Ghoul
ε17 Strangeness 5 7500 Strange Quark Lloigor Dynamics
ε17 Resonance Soldier, Tau Ne 3 4500 Tau Neutrino Pendragon Apostolic Church
ε17 Lepton ν 4 6000 Lepton & Neutrino Eight Precious Beauties
ε17 Pursuit Transformation, Graviton 3 4500 Graviton Hydra Foundation

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