I did this one for Calix a while back that connects the 'Rock Worriors' golden book to Calix.
Real Name - Calix
Hordak used a combination of magic and technology to create the Stone Ray. A device capable of creating rock soldiers out of solid stone. However Hordak was never able to perfect the device which left the rock warriors it created with a fatal flaw. Any contact with water and they would crumble back into to the rocks that birthed them.
With the help of his Witches and their combined magic, Hordak was able to create one Rock Warrior not susceptible to this weakness, the mighty Calix.
Calix rose to become a Commander in the Horde army until the fateful day of the assault on Grayskull when Hordak executed Calix for failing him one too many times.
Centuries later Skeletor found the Stone Ray in the ruins of a Horde temple and used it it to create his own army of Rock Warriors which he sent to attack the royal palace. A huge battle took place untill the Masters drove the Rock Warriors back to Snake Mountain where they discovered the secret to destroying the Rock Warriors and the Stone Ray for good.