- Order: Saurischia
- Suborder: Wyvern Feet
- Infraorder: Heavy Shell Wyvern
- Superfamily: Horn Wyvern
- Family: Blos
Diablos is a violent species of Flying Wyvern part of a family, known as Blos. This family includes Monoblos, White Monoblos, and Varusaburosu. During the Breeding Season, female Diablos in heat change color and become the Black Diablos.
Diablos have been seen living in the Old Desert, Dunes, Desert, White Lake, Sandy Plains, and some desert parts of the Everwood. Rarely, Diablos have been seen in the Deserted Island. Diablos migrate there when they simply can not find enough food in the Sandy Plains.
Diablos are Herbivores that readily feed on any kind of vegetation in their territory. Diablos are known to feed on different types of desert vegetation, most commonly giant cacti which can reach sizes of up to 12 feet tall. But with the size of the plants also comes rarity, so Diablos are always on the look out for these rare and succulent food, which leads to frequent territorial disputes. In desert environments, Diablos occasionally come into contact with large predators such as Tigrex, Kuarusepusu, Sand Barioth, Akura Vashimu, Nibelsnarf, Odibatorasu, Hyujikiki, and rare Elder Dragons found in said environments.
Diablos chief adaptation is its twin horns. Both strong and sharp, but wear constantly. Diablos's blunt claws on its wings, strong neck muscles which allows them to support their heavy heads and attack with it, and strong hind legs and tail help it to burrow through desert sand. Such powerful muscles also make it formidable in combat, and although Diablos lack any kind of breath attack, they more than make up for it with some of the strongest ramming attacks yet seen. Diablos thick tail serves as a club for self-defense, capable of breaking iron. Diablos shell and spines are perfect for protecting Diablos from most attacks.
Some rare individuals have grown longer horns, more developed spikes ,a reddish tint, use a digging technique that allows it to throw rocks into the air as it digs preventing followers and harming target alike, and having a roar louder than any other Diablos besides rare female individuals with a even louder roar.
Highly aggressive, even for such a large wyvern. Diablos are considered one of the most aggressive monsters in the Desert.