Mattel Brick Shop Masters of the Universe Battle of Castle Grayskull Building Set

Refuge for our heroes, Castle Grayskull stands proud in this detailed set by Mattel Brick Shop. Recreate the battle between the Heroes of Eternia and Skeletor, complete with 16 NanoWorld figures, special effects pieces, and authentic details. The clash of good and evil is yours to build and display. Collect all the Masters of the Universe building sets by Mattel Brick Shop and build the movie; each sold separately.

• Build Epic Battles: Buildable Castle Grayskull from the Masters of the Universe film.
• Assemble Your Army: Bring your scene to life with 16 NanoWorld figures featuring  swappable poses, including He-Man and Skeletor. 
• Epic Special Effects: Includes light burst special parts for a display-worthy scene.
• Authentic Movie Details: Recreate the scene with rotating turrets to see interior battles, a buildable inner sanctum, plus extra pieces to pose figures mid-air. 
• Compatible With Other Brands: Pieces combine with all building sets by Mattel Brick Shop and other name brands.

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Colors and decorations may vary. Product subject to availability. Purchase limits subject to change at the sole discretion of Mattel. From April 25, 2026, at 12:00am PT through April 26, 2026, at 11:59 pm PT, only Club Grayskull members can buy this item at MattelCreations.com, while supplies last. During this time, the item may be available at other retailers.