Mercphobia’s appearance is similar to that of a giant sea serpent, with a scaly underside, two large fin-like wings, and two smaller fin-like wings on his lower body, razor-sharp teeth, two massive tusks protruding from his upper jaw, and a long, pointed nose. He bears a tribal-like design on his face while maintaining his two horns. He also has black spikes running from his neck to his tail tip and has medium fins running across his whole back. He also wields Water dragon slayer magic.