Blocks needed
Plus-Plus The Mirror of Erised (Harry Potter 1) Instructions
Build the Plus-Plus The Mirror of Erised (Harry Potter 1) with step-by-step 3D instructions. It's an hard build with 102 blocks and about 17 minutes to complete.
Official Plus-Plus products that include the colors needed for this build.
Jul 21, 2026
Monthly Plus-Plus Challenges have officially launched! Build your best fantasy-themed creation, vote for your favorites, and become one of the featured builders in the community.
Jul 9, 2026
PlusPlusInstructions.com now includes every official Plus-Plus color. Explore the full color overview, track your collection, see what builds you can make, and generate alternative versions with your own colors.
Jun 26, 2026
Plus-Plus 3D builds just got a huge upgrade. Increase your build limit from 100 to 200 blocks, use better step controls, fine-tune positioning, and edit blocks faster than ever in Creator Studio.
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