Submarimon is an Aquatic Digimon whose name is derived from the Submarine and whose design is derived from the Submarine and the narwhal (Monodon monoceros). It armor-digivolved through the power of the "Digi-Egg of Reliability". It swims freely around the ocean, and the techniques unleashed in underwater battles are no match for it unless they're also from a considerably Aquatic Digimon.