Mattel and the very cool toy designers Four Horsemen invited us into their fortress of creative awesomeness to show off the newly completed, eagerly-anticipated "Masters of the Universe" Classics Castle Grayskull Playset, before it premieres at this year's Toy Fair! Check out our ultra-teasery teaser video and more pics below!

Check back for the full reveal of Castle Grayskull on Sunday, February 10th at 3pm EST!

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