An evil of terrible power was set loose on the land and now the ponies must depend on a hero from another world to save them all from doom.
A warrior risen from the dead to keep fighting even the most terrifying of beasts, the Ashen One as he is called appears in their hour of need.
Too bad he's not very good at helping others in need.
Well, that was amusing in a very Dark Souls way, although it could have used another editing pass before you published it. Here are two I copied down to get you started.
missing "air"
"at"
Darn, was hopping when he wrote something it was going to read "horse butt" regardless, nice little story about our heroic savior
"Horse ahead,
Therefore,
Try Thrust!"
"Don't Give up!" - Skeleton