I saw the show when I was very young, maybe about 17-19 years ago (around the year 2000). I hope someone can remember the show's name. It goes something like this. There was this guy walking in the desert when he saw a mummy which was trying to steal a red ruby from him. The ruby is some kind of transformation stone which has to be tossed up into the air to transform and therefore the mummy transform using the stone. I don't really know much about the details. Any clues?