A mysterious creature that lives along the northen coast of Austeros. It is said to protect and clean the ocean so that Pokémon may live in peace.
Nepheleos' body is serpentine and colorful, it is mainly white with patches of blue, yellow and orange. Nepheleos has two massive wings, one on each side of his body. While most of his body is covered in scales, it has feathers on the side of its head and the end of its tail, as well as on his wings.
Nepheleos has the ability to manipulate water flows and air currents. It uses to ability to create heavy storms and strong waves. Nepheleos usually makes use of these powers to push human thrash back to the shore.
It is known to be a benevolent creature towards other Pokémon. Its behavior towards human is changing and inconsistent, sometimes hostile, sometimes not, depending on their actions towards Pokémons and the ocean.
Nepheleos resides in the ocean, mostly along the north coast of Austeros.