Groudon is much larger than people once theorized, in fact, you could stumble across Groudon without even realizing. Standing at full height, Groudon is about 60 feet, and closer to 90 feet including the length of the tail. Despite Groudon's ground typing, it traverses the ocean with no problem, the water surrounding it only toughens its skin as it shuffles along the ocean floor with its anchoring claws. Lush and wildlife grows on Groudon when it finds a place to rest, and its resting periods last anywhere from 1 to 100 years depending on how rough the waters are in that area. The rougher the waters, the sooner Groudon would choose to move locations. As of today, a small village has found home on Groudon's back, for the sole purpose of making sure it stays dormant. Wild Pokémon have also taken home on the goliath, mostly bug, rock and grass types that rely on the nutrient-dense ground it is made of. Groudon has been officially classified as a Mirage Island due to its nature.
Groudon's internal heat builds up from years of dormancy, being unleashed and brought to the surface by exposure to a Red Orb. The trees on its back quickly wither and fry, being shoved out of the way by Precipice Blades that resemble towering mountains. Groudon's surface is now flowing Lava, pieces of it periodically melting off as it gets too cold and heavy, creating igneous boulders that are difficult to dodge away from. Groudon's belly, in contrast, is made of Magma, kept warm and bright by its outer shell and internal heat combined. While in its Primal Form, Groudon not only seeks to warm up the environment by ridding it of its humidity, but also to thicken its armor by consuming pieces of land, mostly Mt. Chimney.
Kyogre is often found resting in Sootopolis town, accompanied by young Corsola and Relicanth as it sleeps on the ocean floor. Corals and Sea Sponges will also grow on Kyogre's back, as the water its body is made of is much more mineral rich than the surrounding ocean water. Unlike Groudon, Kyogre is much more active than it, often found swimming throughout Hoenn freely day by day. Kyogre is also much more passive and less aggressive than Groudon, angering it is surprisingly difficult. Kyogre is the reason that Hoenn has almost double the amount of rainstorms annually than any other region, it's a simple and harmless way to release pent up energy for it. Kyogre has been found carrying trainers that it's fond of between islands, making it seem like the trainer is simply floating across the water's surface from a distance.
Kyogre's body becomes more and more saline, as it moves quickly to shake off the wildlife from its back, and thick, kelp-like strands grow from its fins and tail. It's said that the water that Primal Kyogre's body is comprised of is salty enough to poison someone by simply touching it for too long. The Corsola that once resided on its back quickly fade of color and descend to the sea floor, and Kyogre thickens the air's humidity to such a degree that it can thunderstorm for weeks nonstop, oversaturating the land with water and killing any plant life that may have resided there.
Rayquaza is constantly on the move, whipping up fluffy clouds behind it as it does. It moves around the world rapidly, usually on the lookout for incoming meteors that may enter the atmosphere. One may think that this is to protect earth, but in reality, it's mostly done to maintain its energy in order to keep flying about. It will target Jirachi comets in particular, as they shine the brightest due to their crystalline-esque structure and they're incredibly nutrient dense. However, Rayquaza is also constantly in pursuit after Deoxys, due to it similarly also being an evident well of energy. Rayquaza acts completely different within the earth's atmosphere, calming and slowing down as it gets closer to the ground. Usually it descends to restore energy that it couldn't with meteors, but it will also descend to prevent Kyogre and Groudon from fighting if one of them begins to get agitated. On the rare occasions that Rayquaza itself is angered, it will summon quick but powerful hurricanes to submit any creature in its way to its wrath.
It's much more common to see Rayquaza in its Mega form than any of the trio, in fact, it only reverts to its normal form once it's entered the earth's atmosphere. Mega Rayquaza is capable of moving at quick enough speeds to cause tears in the layers of the atmosphere itself, leaving scar-shaped breaks in the sky as it travels that resembles a galaxy trail. When moving across the sky at night, people have mistaken Rayquaza for a shooting star, due to how it glows brighter the faster its traveling. Rayquaza doesn't need to eat while in this form, so it will often be surrounded by admiring Minior that mistake it for an asteroid belt to call home.
