When Skeletor sends Castle Grayskull into another dimension to discover its secrets it means big trouble for He-Man and the rest of the Masters of the Universe. Just for starters it means that He-Man is no longer in possession of his Power Sword!
While watching this episode when He-Man, Battlecat and Teela travel to the strange new dimension, I truly expected Dr. Strange from Marvel Comics to pop up at any second to lend them a hand.
[Via] The He-Man Universe