Cumuleon

Cumuleons are powerful paraelementals native to Nimbus of the elemental plane of air Cyclonum and elemental plane of thunder: "Voltaire". They appear as gigantic storm clouds shaped like a lion's head with glowing red eyes and fangs made of solid thunders which fire lightnings whenever the beast opens it mouth. Upon reaching adulthood they often leave their homes and visit various material planes to wreak havok for their own entertainment. Many primitive civilizations worship them as deities and even offer them sacrifices.

Their maximal size can reach the radius of even 20 km, but larger specimens were also observed. They often hoover 2-3km above the ground and are able to travel with speed 20 km/s. Cumuleons are omnivore, but prefer meat over plants. They are intelligent and can speak common, but who would speak with their own food?