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Notable parts

• 6 printed parts are only in this set: Tile Round 2 x 2 with Bottom Stud Holder with Yellow Eye with Detailed Iris… (Black) ×2; Tile 2 x 4 with Creature Face with Medium Blue Electrified Sinister Smile and… (Black); Tile 2 x 4 with Mouth with Sinister Smile, Light Bluish Gray Teeth and Dark… (Black); Tile 2 x 4 with Rock Creature Face with Jagged Mouth and Yellow Eyes Print (Dark Bluish Gray); Tile Special 2 x 3 Pentagonal with Nexo Power Shield Print - Mindbender (Trans-Clear); and 1 more.
• 20 parts appear in only a few other sets: Brick Curved 2 x 8 x 2 Double (Black) ×4 — also in 71848 The Temple Bounty; Brick Wedged, Sloped 4 x 2 Triple Left (Dark Purple) ×3 — also in 70356 The Stone Colossus of Ultimate Destruction (all Nexo Knights); Brick Wedged, Sloped 4 x 2 Triple Right (Dark Purple) ×3 — also in 70356 The Stone Colossus of Ultimate Destruction (all Nexo Knights); Hair Long Straight with Bangs - Rubber (Dark Brown) — also in 70324 Merlok's Library 2.0 (all Nexo Knights); Tile 2 x 4 with Brickster Rock Creature Face with Wide Open Mouth, Jagged Teeth… (Sand Blue) — also in 70356 The Stone Colossus of Ultimate Destruction (all Nexo Knights); Tile Special 2 x 3 Pentagonal with Nexo Power Shield Print - Corrupting Crush (Trans-Purple) — also in 70356 The Stone Colossus of Ultimate Destruction (all Nexo Knights); Wheel Hard Plastic with Large Cleats and Flanges (Rock Design) (Dark Bluish Gray) ×10 — also in 70350 The Three Brothers, 70356 The Stone Colossus of Ultimate Destruction (all Nexo Knights); Brick Sloped 33° 3 x 3 Double Convex (Dark Bluish Gray) ×2 — also in 75181 Y-wing Starfighter, 6218709 Cities of Wonders - Malaysia: Kampung House; Creature Body Part, Wing, Rocky with Smooth Trans-Light Blue Membranes Pattern (Dark Purple) ×2 — also in 70359 Lance vs. Lightning, 70353 The Heligoyle (all Nexo Knights); Jet Engine Fan with 10 Blades and Technic Pin (Trans-Light Blue) ×2 — also in 70780 Protector of Water, 70338 Ultimate General Magmar; Large Figure Weapon, Barrel with 2 Pin Holes and 3 Axle Holes (Trans-Neon Orange) ×2 — also in 30376 Knighton Rider, 70358 Aaron's Stone Destroyer (all Nexo Knights); Cone 2 x 2 x 3 Jagged (Flat Silver) — also in 70348 Lance's Twin Jouster, 71484 Cooper's Robot Dinosaur C-Rex; and 8 more.
• 7 parts are otherwise only found in Nexo Knights sets: Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder (Medium Blue) ×10; Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid] (Trans-Neon Orange) ×5; Arm, Short, with Technic Pin (Sand Blue) ×2; Brick Wedged, Sloped 4 x 4 Pointed (Dark Blue); Headwear Accessory Plume / Feather / Ponytail (Dark Red); and 2 more.
• 13 moulds first came out in 2017, including in this set: Tile Special 2 x 2 Corner with Cut Corner - Facet ×10; Wheel Hard Plastic with Large Cleats and Flanges (Rock Design) ×10; Brick Round 2 x 2 Special with Spikes ×6; Wave / Lightning Angular, Single ×5; Brick Sloped 45° 2 x 1 with 2/3 Inverted Cutout and no stud ×4; and 8 more.
• 11 existing moulds first came out in their colour in 2017, including in this set: Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid] (Trans-Light Blue) ×15; Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder (Medium Blue) ×10; Brick Wedged, Sloped 4 x 4 Fractured Polygon Top (Dark Purple) ×7; Brick Curved 2 x 8 x 2 Double (Black) ×4; Brick Wedged, Sloped 4 x 2 Triple Left (Dark Purple) ×3; and 6 more.

Calculated from Rebrickable’s public set inventories, excluding sticker sheets and spare parts.