LEGO Harry Potter Advent Calendar

1 part comes in a colour no other set has for that mould

• Hair Bangs, Long Ponytails on SidesBlack

3 printed parts are only in this set

• Container Box 2 x 2 x 1 with '+' and LEGO Plate, '-' and LEGO Brick, Snake and…Medium Nougat
• Tile 1 x 2 with Parchment Scrap with 'Harry Potter' PrintTrans-Clear
• Tile 1 x 2 with Runes, '3', '9', '0', and 'AZKABAN PRISON' PrintBlack

4 parts appear in only a few other sets

• Hair Combed Sideways with Short Sideburns [Plain]Dark Bluish Grayalso in 75969 Hogwarts Astronomy Tower
• Minifig Trophy Statuette, Hooded Figure (Emperor Palpatine Hologram)Black · ×2also in 75251 Darth Vader's Castle, 71043 Hogwarts Castle
• Hair Mid-Length Tousled with Center PartMedium Lavenderalso in 76408 12 Grimmauld Place, 76476 The Ministry of Magic - Collectors' Edition
• Brick Sloped Inverted 45° 2 x 2 Double ConvexDark Orangealso in 71362 Guarded Fortress, 76391 Hogwarts Icons - Collectors' Edition, 41703 Friendship Tree House, 60434 Space Base and Rocket Launchpad

2 existing moulds first came out in their colour in 2022, including in this set

• Hair Mid-Length Tousled with Center PartMedium Lavender
• Technic Pin 1/2 with FrictionRed

8 minifigure parts with their print are only in this set

• Minifig Head Moaning Myrtle, Glasses, Light Bluish Gray Eye Shadow, Smile / Sad…White
• Minifig Head Nymphadora Tonks, Eyelashes, Smirk with Red Lips / Duck Bill PrintLight Nougat
• Minifig Head Voldemort, Cheek Lines, Tan Eyeshadow, Sticking Out Tongue PrintWhite
• Torso, Dark Bluish Grey/Reddish Brown Knitted Sweater, White/Medium Azure Shirt…Light Bluish Gray
• Torso, Dark Brown Diagonal Stripes Shirt, Buttons Print, Dark Tan Arms, Light…Dark Tan
• and 3 more