Nevermore, an avid soul collector of many worlds wanders planes to add to his collection. However, the gates of Tartarus was unstable, its energy used for a portal for a fiend filled with bloodlust, hate, and corrupted passion. The soul-thirsty demon seeks out Shining Armor and Princess Cadence's unborn baby. His reasons for their baby are unknown, but his abominable rage razes and scorches the lands he treks across. A being full of relentless hatred will stop at nothing and will obliterate everything in his path. As the merciless Nevermore ravages Equestria, it's only a matter of time before he gets to Cadence.

Nevermore, the Shadow Fiend is a hero in Dota 2. You do not need to play the game to understand this story. Another side note: written when under the influence.