Dragon Devil's Retaliation Wave

Dragon Devil's Retaliation Wave (竜魔の腹癒浪 Ryūma no Haraise Nami) is a Water Dragon Slayer Magic Spell.

Description
A spell similar to Raging Sea: Retaliation Wave, but on a much larger scale. After the user has drank water produced by Water Devil Slayer Magic, they gather dark violet water in their left hand whilst gathering standard Water Dragon Slayer Magic water in their right hand. By swiping their arms in a circular fashion, the user creates a powerful torrent of water, which destroys a large area and barrages the target with devastating force. This spell was able to defeat Troy Mariner's more powerful demonic counterpart with a single use.