Demon Sword Dainsleif

Demon Sword Dainsleif (魔剣ダーインスレーヴ) is a bone and space-based Union Magic spell.

Description
The user creates a bone sword and then coats the blade in offensive Spatial Magic. Swinging the sword can create flying slashes of offensive Spatial Magic.

Trivia

 * Dáinsleif is a legendary sword from Norse mythology.