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

Official product image · box and contents shown

Castle Grayskull building set with rotating turrets, an inner sanctum, light-burst effect parts and 16 NanoWorld figures including He-Man and Skeletor. Assembly is required. Official product photography shows packaging and assembled contents, not seller inventory.

Release schedule: April 25, 2026 (Mattel Creations member order opening; shipment unconfirmed)

The schedule above describes a launch announcement or order opening, not confirmed delivery. Fulfillment and current stock are not confirmed.

Manufacturer product image showing retail packaging and assembled building-set contents, not actual seller inventory.

Specifications

• Pieces: 867
• Age recommendation: 13+
• Sales restriction: Original launch: Club Grayskull member-only ordering April 25–26, 2026; not a current availability claim.
• Retail format: Building set
• Retail units: 1
• Announced launch window: 2026-04-25
• Release market: United States manufacturer support listing