Over one thousand years ago, the Crystal Kingdom Empire was ruled by the cruel and feared King Umbra. Yet even though the King had everything that a pony could desire, he craved more. Jealousy swelled in his dark heart, and one insane decree turned his once peaceful empire into a kingdom of chaos and panic, and two guards alone risk everything they have to save a lone orphaned colt from the pain and misery that Umbra had brought upon their once-fair home.

~~~~~~~

While watching the Season 3 premier, I noticed that none of the Crystal Ponies have wings or horns - they were all Crystal Earth ponies. This is my headcanon as to why that is!