Firstbourne

1 mould appears in no other set

• Wing, Right, Dragon with Black Spines, Dark Red Marks, and Gold Ovals on Red…×2

2 printed parts are only in this set

• Brick Curved 2 x 1 No Studs with Yellow Left Eye, Red Stripes PrintBlack
• Brick Curved 2 x 1 No Studs with Yellow Right Eye, Red Stripes PrintBlack

6 parts appear in only a few other sets

• Animal Body Part, Barb / Claw / Tooth / Talon / Horn, MediumBright Light Orange · ×17also in 30535 Fire Flight (all Ninjago)
• Hood with KnotBlackalso in 70652 Stormbringer, 70654 Dieselnaut (all Ninjago)
• Large Figure Weapon Sword, 3 Bar Holes and Axle HiltBlack · ×6also in 70639 Street Race of Snake Jaguar, 70642 Killow vs. Samurai X, 70655 Dragon Pit (all Ninjago)
• Propeller 1 Blade 2 x 16 with AxleDark Bluish Gray · ×2also in 70658 Oni Titan, 70673 Shuricopter, 71720 Fire Stone Mech (all Ninjago)
• Helmet Ninja, SamuraiPearl Goldalso in 70654 Dieselnaut, 70643 Temple of Resurrection, 70655 Dragon Pit (all Ninjago)
• Animal Body Part, Barb / Claw / Tooth / Talon / Horn, SmallBright Light Orange · ×10also in 70652 Stormbringer, 41373 Funny Octopus Ride, 70847 Good Morning Sparkle Babies!, 80104 Lion Dance

5 parts are otherwise only found in Ninjago sets

• Weapon Dagger / Knife with Flat Hilt End and Curved Blade, Cross Hatched GripFlat Silver · ×2
• Weapon Scythe / Hook with BarFlat Silver · ×2
• Weapon Scythe / Hook with Double BladesFlat Silver · ×2
• Weapon Sword Blade with Bar, Square CrossguardFlat Silver · ×2
• Weapon Sword Curved Blade with BarFlat Silver · ×2

9 moulds first came out in 2018, including in this set

• Weapon Sword Curved Blade with Bar×10
• Large Figure Weapon Sword, 3 Bar Holes and Axle Hilt×6
• Minifig Neckwear Shoulder Guard with Flat Silver Spikes Print×2
• Plate Special 1 x 2 Rounded with 2 Open Studs×2
• Bracket 1 x 1 - 1 x 1
• and 4 more

10 existing moulds first came out in their colour in 2018, including in this set

• Animal Body Part, Barb / Claw / Tooth / Talon / Horn, MediumBright Light Orange · ×17
• Animal Body Part, Barb / Claw / Tooth / Talon / Horn, SmallBright Light Orange · ×10
• Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip]Orange · ×2
• Propeller 1 Blade 2 x 16 with AxleDark Bluish Gray · ×2
• Wedge Plate 2 x 2 Cut CornerDark Red · ×2
• and 5 more