Volume 13: Sea Rain and Sky Wind, Chapter 20: Naked Dragon

As Hayreddin's footsteps faded into the distance, Komer's magical incantation had reached its zenith, and faint sounds of Yin thunder were already rolling in the air. The moment the Ice Dragon's breath appeared, the "Hammer of Thor" would reign supreme over the land.

For the Dragon Clan, thunder-based Magic was undeniably the most lethal. Any kind of dragon would have to submit and avoid it when faced with this divine power from the heavens. They might not fear any Elemental Magic, but such a godly force, originating from yet surpassing Elemental Magic, wasn't something even the mightiest of dragons could withstand.