Unlike the other tribes, the Aquarion have a unique style of gameplay.
The Battle of Polytopia - Aquarion Tribe DLC Steam CD Key These units are all amph. Aquarion is Polytopia's first Special Tribe! Instead of getting Riders, Knights, or Giants, the Aquarion are given replacements, the quick Amphibian, ranged Tridention, and hardy Crab, respectively..