Hydra of Darkneros

Demon Water Magic: Hydra of Darkneros (魔水魔法『の』) is a Demon Water Magic spell.

Description
The user generates a large sphere of water around themselves and then extends multiple large serpents from the surface of the sphere. These eyeless, spiked serpents try to crush their target in their sharp-toothed mouths.

Trivia

 * In Greek and Roman mythology, the Hydra was a water monster with multiple serpentine heads.