Dragon's Forge

2 parts come in a colour no other set has for that mould

• Mudguard 2 x 4 with 2 x 2 Studs and Flared WingsDark Azure · ×3
• Mudguard 2 x 4 with Molded HeadlightsDark Brown · ×2

10 parts appear in only a few other sets

• Tile Round 2 x 2 with Airjitzu Wave Symbol in Dark Red Octagon PatternPearl Goldalso in 70590 Airjitzu Battle Grounds (all Ninjago)
• Weapon Spike Flexible 3.5LDark Azurealso in 77253 Bugatti Vision Gran Turismo
• Hinge Plate 1 x 12 Locking with Angled Side Extensions and Tapered Ends, 7 TeethTrans-Dark Blue · ×3also in 10725 Lost Temple, 70602 Jay's Elemental Dragon
• Hinge Plate 1 x 12 Locking with Angled Side Extensions and Tapered Ends, 7 TeethTrans-Orange · ×3also in 10247 Ferris Wheel, 76144 Avengers Hulk Helicopter Rescue
• Bigfig Arm, Left [Plain]Redalso in 76078 Hulk vs. Red Hulk, 76292 Captain America vs. Red Hulk Battle
• Bigfig Arm, Right [Plain]Redalso in 76078 Hulk vs. Red Hulk, 76292 Captain America vs. Red Hulk Battle
• Tile Round 2 x 2 with Airjitzu Fire Symbol on Red Background PrintPearl Goldalso in 70739 Airjitzu Kai Flyer, 70595 Ultra Stealth Raider (all Ninjago)
• Wedge Plate 6 x 3 LeftLimealso in 60123 Volcano Supply Helicopter, 10215 Obi-Wan's Jedi Starfighter, 70626 Dawn of Iron Doom
• Weapon Blade with Bar and 3 SpikesPearl Titanium · ×2also in 70170 UltraCopter vs. AntiMatter, 891611 Cole, 70172 AntiMatter's Portal Hideout, 70171 Ultrasonic Showdown
• Animal Body Part / Plant, Tail / Neck / Branch / Trunk, Middle Section with…Dark Brownalso in 70751 Temple of Airjitzu, 70604 Tiger Widow Island, 41196 The Elvenstar Tree Bat Attack, 75953 Hogwarts Whomping Willow

1 part is otherwise only found in Ninjago sets

• Headwear Accessory Ninja Helmet Horn/Antlers, ElaborateBlack

8 moulds first came out in 2017, including in this set

• Tile 4 x 4 Curved, Macaroni×8
• Animal, Snake Head with Open Mouth, Fangs and Curved Neck with Bar×4
• Helmet with Cheek Protection and 2 Snakes with Fangs (Ninjago)
• Helmet with Cheek Protection and 2 Trans-Red Snakes Pattern
• Minifig Neckwear Armour Breastplate with Round Collar, Chain Mail, Shoulder…
• and 3 more

12 existing moulds first came out in their colour in 2017, including in this set

• Animal Body Part, Horn (Cattle) / Tentacle / Vine / Branch / Tongue - LongRed · ×4
• Technic Axle and Pin Connector Angled #2 - 180°Dark Brown · ×3
• Brick Wedged, Curved 2 x 3 x 2/3 Two Studs, Wing EndPearl Titanium · ×2
• Plate 4 x 6Dark Tan · ×2
• Plate Round Half 4 x 8Olive Green · ×2
• and 7 more

7 minifigure parts with their print are only in this set

• Hips and Black Legs with Scale Armor, Red RobeBlack
• Hips and Dark Blue Legs with Bright Light Blue ApronDark Blue
• Minifig Head Maya, Smile / Scared PrintYellow
• Minifig Head Nya, Eyebrows, Dark Orange Lips / Blue Rimmed Eyes, Gold Pupils…Yellow
• Minifig Head Ray, Eyebrows, Goatee, Crooked Smile / Gray Headband, Scared PrintYellow
• and 2 more