"Blood for the bloodbowl!"
A lone sales pony was moving through the woods, pulling his carriage filled with items for sale. He was quite angry due to a bad day. He had to replace two wheels after they broke and had sold barely nothing this week. The latter was partially caused by the sorry state of his fur. He had the shave most of it after some blue bitch of a mare had covered in an painfully yellow dye.
She claimed that he had sold her some fake item. preposterous he thought, everything he sold was real and of high quality. He had actually left his old shop and gone on the road out of fear that the mare would come back.
The stallion swore as his carriage passed over a pothole that he had not seen. After checking that non of the wheels had broken. He sighed in relief as they were all intact. So he continued moving.
He had not noticed that an old box had fallen off. A nearby deer that just happened to be there did notice. The deer had just been there by pure random chance, having decided to travel through the world, currently in the desert near Appleloosa. He approached the box, noticing that the lock had broken. Getting closer he saw some red liquid pouring out of the box. There was a strangely sweet smell coming from the box.
He bowed down to get a closer look. Had he just stood a few centimeters away then he would have been out of range. Instead a fleshy mass with protruding bones leapt out of the box and attacked with a fleshy tentacle. The tentacle stabbed the deer in the eye, not deeply enough to hit the brain. The deer jumped backwards in pain, however the tentacle was stuck in his eye and thus he pulled the fleshy mass towards him.
The fleshy mass landed on the deer and quickly started tearing through the deer's flesh quickly silencing him. The fleshy then proceed to slowly tear the flesh and bones of the corpse. After a few minutes nothing was left of the deer except for it's fur and the fleshy mass had grown in size. It then started moving slowly taking a more coherent shape. Two legs, arms and a tail grew out of the mass, the deer skull was crushed before being reformed into a more canine skull and it stood up on two legs.
The mass now looked like a skinless, bipedal being. Then their eyes appeared into the skull and fur started growing. After half-a-minute all the fur had grown. The fleshy mass was gone, now replaced by a bipedal hyena-like creature.
The naked hyena looked around and spotted a billboard with the bright words "Welcome to Appleloosa!" written on it. The hyena now knew where to go. He then looked at the remains of the deer. Some fur and hide were all that was left.
He always wanted to wear a fur coat.