Ghost, The Shadow Walker is my self-moc.
Ghost is part of a race called the Atherians, a species of sentient beings who can ■■■■■ between reality and the Aether (a dimension which exists in the same space as reality, where time passes at a slowed rate and is filled with energy). The Shadow Walkers were Atherian who had a strong connection with the Aether, allowing them to harness the energy contained within it and could use it to create anything they could think of.
After conflict broke out between the Aetherians and many other species, despite the power the Aetherians possessed, they were wiped out, except for Ghost. He is the last of his kind and now he looks to find the beings who killed his race and to make them suffer.