Day 83: Rock/Ice
Austeroid -> Meteorion
Austeroid arrive periodically from the depths of space, and at present seem to be the strongest evidence that Pokémon are extraterrestrial on origin. Composed mostly of a delicate silica and ice matrix, tiny bits of this Pokémon gradually break off as it flies through the void, forming its brilliant tail, and necessitating that it periodically stop at planets and large asteroids to replenish itself. Though they will occasionally fly down near the surface to explore, Austeroid are usually content to orbit the upper atmosphere, where they feed on stray bits of water until they again reach full size. However, if threatened, they can rocket themselves at a target with alarming speed.
Should a group of Austeroid stay too long in the atmosphere, their excess mass will eventually cause them to merge together, triggering the evolution into Meteorion. Bolder then their smaller brethren, Meteorion are more likely to enter the lower atmosphere, and some may even choose to stay on earth for years or even decades on end, learning about the planet and its inhabitants. However, regardless of any friends they may make, Meteorion view their time on a planet as temporary, and by activating opposing magnetic poles in its many moving parts, they may create a sort of natural warp drive, rocketing past the sky and into parts unknown.
Eh, what the heck, I’m going to go all-out with the abilities on this one. Austeroid and Meteorion’s ability is Speed Boost, and their hidden ability is Technician.
These guys were inspired by comets, and on the 1957 science fiction novel, The Black Cloud.