A disc that floats on the water at max weight!  The Amphibian also has a unique flight. With a flight plate that is close to Maximum thickness, the disc has less gyroscopic procession than other molds making it drop out of the air instead of fading.  This makes it great for fairway drives. It hates a headwind and is generally easy to throw. It holds a line longer than you think it will on high-trajectory turnovers. Rolls well too!