Eternano Saber

MC-EVSMS-V-Eternano Saber (ＭＣ (魔法評議) ・ＥＶＳＭＳ (実験可速魔刃) ・Ｖ (変離) ・エーテルナノ・セイバー, Mahō Hyōgi Jikken Kasokumajin Henkyori Ēterunano Seibā; lit. Magic Council Experimental Variable Speed Magic Sword Variable Range Eternano Saber) is an experimental weapon developed by the Magic Council.

Description
The Eternano Saber, along with the Eternano Rifle, is one of the three "magic-driven weapons" developed by the Magic Council in their "E Project", a project with the goal of revolutionizing magic weapons-based combat forever. The name "eternano saber" is considered to be a misleading name as, unlike other weapons with the word eternano incorporated within their name, the Eternano Saber does not use eternano as its main power source. Instead, when the user grasps the Eternano Saber, their Magical Aura will surge into the Lacrima-crafted hilt, and the hilt will, upon reaction with the user's Magical Aura, generate an magic barrier in the shape of a blade, before filling the magic barrier shell with the user's Magical Aura which becomes superheated due to the magic barrier, producing an highly effective cutting blade. The termination of the magic barrier along the defenses (or lack thereof) of a solid target allows the Magical Aura to devour the material that the target is composed of until the magic barrier reestablishes itself, allowing the weapon to "slash" through almost any target. In addition, as the Eternano Saber's magic barrier not only keeps the blade's magical aura in but also keeps the magical aura from another blade out allowing one Eternano Saber to be used to defend against another. Finally, since the magic barrier which contained the Magical Aura is capable of being morphed into a variety of shapes, it would be considered trivial for anyone to create exotic variants of the Eternano Saber, such as an Eternano Axe or Eternano Spear. Despite this fact, numerous Eternano Saber-based variants have been created- and interestingly enough, these have proven to be stronger than the bog-standard Eternano Saber, if more specialized, whereas the Eternano Saber is more of a general-purpose weapon.

Trivia

 * The Eternano Saber was based upon the beam sabers of the Mobile Suit Gundam series, one of the author's favourite series, but tuned to the world of Fairy Tail.