Masters of the Universe: The Shard of Darkness #1

Evil-Lyn plots to use the Shakarran Crystal to overthrow Skeletor. Reprimanded for using his faulty magic in dangerous ways, Orko goes for a walk in the woods where he finds a glowing crystal on a chain. A fire breaks out in Eternia City that even He-Man cannot contain and everyone is surprised when Orko flies in and uses the crystal to quench it. He-Man and Man-At-Arms decide to take the crystal to Castle Grayskull and ask the Sorceress about it.