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Fast delivery and a happy grandchild under the Christmas tree. What more could you want???
Retailer prices for 31073 are sorted by the latest lowest price.
Retailer pricesPrice history 31073
We check Dutch retailers every day. This graph shows the full daily-low price series we have for this set.
Daily lowest price tracked across 2 Dutch retailers. The dotted line marks LEGO's recommended retail price.
Source: daily measurement at 2 Dutch retailers, 15 Dec 2025 – 1 Feb 2026. RRP via LEGO.com.
| Date | Price | Retailer | Stock |
|---|---|---|---|
| €56,90 | Bol.com | In stock | |
| €56,90 | Bol.com | In stock | |
| €56,90 | Bol.com | In stock | |
| €56,90 | Bol.com | In stock | |
| €56,90 | Bol.com | In stock | |
| €56,90 | Bol.com | In stock | |
| €56,90 | Bol.com | In stock | |
| €56,90 | Bol.com | In stock | |
| €56,90 | Bol.com | In stock | |
| €56,90 | Bol.com | In stock | |
| €56,90 | Bol.com | In stock | |
| €56,90 | Bol.com | In stock |
Calibrated forecast based on historical pricing, seasonal patterns and retailer behavior. Tuned conservatively: rather cautious than optimistic.
Signal is mixed. Small movements are more likely than a big drop.
What to know about LEGO 31073 before you buy.
Enjoy monstrous adventures with the 3-in-1 Mythical Creatures set. Create a fire-breathing Dragon with a dark-red and yellow color scheme, large fangs, green eyes and pointed claws. This 3-in-1 children's toy also features posable legs, head, tail and wings, and rebuilds to create a Giant Spider or an axe-bearing Troll for more scary LEGO® fun. The 3-in-1 Mythical Creatures set features a rebuildable, fire-breathing Dragon with fangs, green eyes and pointed claws, plus posable jaws, head, tail and wings. Features a fiery dark-red and yellow color scheme. Open the Dragon's fiery jaws to reveal its sharp fangs and then whip its tail, fold out its wings and take to the skies. Move the Dragon's head, legs, tail and wings to create exciting poses. Continue the adventure with this 3-in-1 model. Rebuild the Dragon to create a scary Spider with big pincers and creepy legs, or a menacing Troll with an axe that doubles as a heavy-metal guitar. This children's toy is suitable for ages 7-12. Dragon measures over 3" (8cm) high, 10" (27cm) long and 6" (17cm) wide. Giant Spider measures over 1" (4cm) high, 7" (18cm) long and 6" (17cm) wide. Troll stands over 5" (13cm) tall.
All about this set
Background, build experience, collector context, and buying notes in one story.
Enjoy monstrous adventures with the 3-in-1 Mythical Creatures set. Create a fire-breathing Dragon with a dark-red and yellow color scheme, large fangs, green eyes and pointed claws. This 3-in-1 children's toy also features posable legs, head, tail and wings, and rebuilds to create a Giant Spider or an axe-bearing Troll for more scary LEGO® fun. The 3-in-1 Mythical Creatures set features a rebuildable, fire-breathing Dragon with fangs, green eyes and pointed claws, plus posable jaws, head, tail and wings. Features a fiery dark-red and yellow color scheme. Open the Dragon's fiery jaws to reveal its sharp fangs and then whip its tail, fold out its wings and take to the skies. Move the Dragon's head, legs, tail and wings to create exciting poses. Continue the adventure with this 3-in-1 model. Rebuild the Dragon to create a scary Spider with big pincers and creepy legs, or a menacing Troll with an axe that doubles as a heavy-metal guitar. This children's toy is suitable for ages 7-12. Dragon measures over 3" (8cm) high, 10" (27cm) long and 6" (17cm) wide. Giant Spider measures over 1" (4cm) high, 7" (18cm) long and 6" (17cm) wide. Troll stands over 5" (13cm) tall.
When current prices are available, buying context appears here.
Instructions & specifications
Dimensions, pieces, build steps, and the official PDF building instruction.
Parts inventory
Known set data around pieces and build context.
Bricks Sloped
Slope 30° 1 x 1 x 2/3 (Cheese Slope)
Part ID 54200 · Bright Light Orange
Qty 11
Slope 30° 1 x 2 x 2/3
Part ID 85984 · Black
Qty 4
Slope 30° 1 x 2 x 2/3
Part ID 85984 · Dark Red
Qty 4
Slope Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]
Part ID 3660 · Yellow
Qty 2
Plates Special
Plate Special 1 x 2 with 5.9mm Centre Side Towball
Part ID 14417 · Dark Bluish Gray
Qty 10
Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]
Part ID 60897 · Dark Bluish Gray
Qty 8
Plate Special 1 x 2 5.9mm Towball Socket
Part ID 14418 · Light Bluish Gray
Qty 5
Plate Special 1 x 2 5.9mm Centre Side Towball Socket
Part ID 14704 · Light Bluish Gray
Qty 5
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)
Part ID 15573 · Dark Red
Qty 5
Plate Special 1 x 2 with Three Teeth [Tri-Tooth]
Part ID 15208 · White
Qty 4
Plate Special 1 x 2 [Side Handle Closed Ends]
Part ID 48336 · Black
Qty 3
Bracket 1 x 2 - 1 x 2
Part ID 99781 · Light Bluish Gray
Qty 3
Bracket 1 x 2 - 1 x 4 [Rounded Corners]
Part ID 10201 · Black
Qty 2
Plate Special 1 x 1 Rounded with Handle
Part ID 26047 · Black
Qty 2
Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring]
Part ID 4081b · Black
Qty 2
Plate Special 1 x 2 with Clips Horizontal [Open O Clips]
Part ID 60470b · Light Bluish Gray
Qty 2
Plate Special 1 x 2 with Clip Horizontal on End
Part ID 63868 · Black
Qty 2
Bracket 1 x 2 - 1 x 2 Inverted
Part ID 99780 · Dark Bluish Gray
Qty 2
Plate Special 3 x 2 with Rounded End, Hole
Part ID 3176 · Black
Qty 1
Bracket 1 x 2 - 2 x 2 Inverted
Part ID 99207 · Black
Qty 1
Plates
Plate 1 x 2
Part ID 3023 · Black
Qty 8
Plate 1 x 3
Part ID 3623 · Yellow
Qty 7
Plate 2 x 4
Part ID 3020 · Dark Red
Qty 5
Plate 2 x 2
Part ID 3022 · Black
Qty 4
Plate 1 x 2
Part ID 3023 · Dark Red
Qty 4
Plate 1 x 3
Part ID 3623 · Dark Red
Qty 4
Plate 1 x 2
Part ID 3023 · Yellow
Qty 3
Plate 2 x 2 Corner
Part ID 2420 · Yellow
Qty 2
Plate 2 x 4
Part ID 3020 · Black
Qty 2
Plate 2 x 3
Part ID 3021 · Yellow
Qty 2
Plate 2 x 3
Part ID 3021 · Black
Qty 2
Plate 2 x 2
Part ID 3022 · Dark Red
Qty 2
Plate 1 x 1
Part ID 3024 · Dark Red
Qty 1
Plate 2 x 6
Part ID 3795 · Yellow
Qty 1
Plates Round Curved and Dishes
Plate Round 1 x 1 with Open Stud
Part ID 85861 · Yellow
Qty 8
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]
Part ID 2654 · Black
Qty 4
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Trans-Bright Green
Qty 1
Plates Angled
Wedge Plate 3 x 3 Cut Corner
Part ID 2450 · Dark Red
Qty 6
Wedge Plate 2 x 2 Cut Corner
Part ID 26601 · Dark Red
Qty 4
Wedge Plate 4 x 2 Right
Part ID 41769 · Dark Red
Qty 1
Wedge Plate 4 x 2 Left
Part ID 41770 · Dark Red
Qty 1
Wedge Plate 4 x 4 with 2 x 2 Cutout
Part ID 43719 · Yellow
Qty 1
Hinges, Arms and Turntables
Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth
Part ID 44302a · Yellow
Qty 4
Hinge Plate 1 x 2 Locking with 1 Finger On Top
Part ID 30383 · Light Bluish Gray
Qty 2
Hinge Plate 1 x 2 Locking with 1 Finger On End, without Groove
Part ID 44301b · Dark Bluish Gray
Qty 2
Bricks Curved
Slope Curved 2 x 1 No Studs [1/2 Bow]
Part ID 11477 · Dark Red
Qty 3
Slope Curved 2 x 2 x 2/3
Part ID 15068 · Dark Red
Qty 2
Brick Arch 1 x 3 x 2 Curved Top
Part ID 6005 · Dark Red
Qty 2
Brick Curved 1 x 2 x 1 1/3 with Curved Top
Part ID 6091 · Dark Red
Qty 2
Tiles Special
Tile Special 1 x 1 with Clip with Rounded Edges
Part ID 15712 · Yellow
Qty 2
Bricks Special
Brick Special 1 x 1 with Handle
Part ID 2921 · Light Bluish Gray
Qty 2
Transportation - Land
Mudguard 2 x 4 with Molded Headlights
Part ID 44674 · Dark Red
Qty 2
Technic Special
Technic Brick Special 2 x 2 with Ball Socket Wide and Axle Hole
Part ID 92013 · Black
Qty 2
Technic Brick Special 2 x 2 with 10.2mm Balls with Holes and Axle Hole
Part ID 17114 · Dark Bluish Gray
Qty 1
Minifig Upper Body
Arm Mechanical with Clip [Thick Support]
Part ID 98313 · Black
Qty 2
Arm Skeleton [Bent / 2 Clips]
Part ID 93609 · Dark Bluish Gray
Qty 1
Bars, Ladders and Fences
Bar Holder with Hole and Bar Handle
Part ID 23443 · Black
Qty 1
Minifig Shields, Weapons, & Tools
Bricks Wedged
Wedge Curved 1 x 2 x 2/3 No Studs, Wing End
Part ID 47458 · Black
Qty 1
Animal / Creature Body Parts
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small
Part ID 53451 · White
Qty 1
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Medium
Part ID 87747 · White
Qty 1
Energy Effects
Wave / Flame Rounded with Base Rim
Part ID 6126b · Trans-Orange
Qty 1
Retailer reviews
Summarized retailer review data when available.
Fast delivery and a happy grandchild under the Christmas tree. What more could you want???
Good Lego product, one of the simplest from the brand, but still attractive. The price-to-quality ratio is correct. You can create 3 different figures.
My 7-year-old son thinks this set is wonderful and he was able to put it together easily. The instructions clearly explain which pieces go where. Playing with the dinosaurs is also fine without them falling apart.
With this set, you can build 3 different models.
The description matched the actual product.
I gave it to my grandson and he loves it, he really appreciated this 3-in-1 set. The quality of the LEGO is unparalleled. Excellent for children who love LEGO. Easy to assemble and great value for money. Highly recommended!!
➡️ DELIVERY Very good packaging, arrived intact, box undamaged.➡️ PRESENTATION Consult the small LEGO GUIDE below if you would like more information and some tips for buying cheaper. The fire-breathing dragon is part of a Lego series called 3 in 1. With the same set of pieces, you can build 3 different models. The set contains 223 pieces. The price/piece ratio is very interesting. A small but important detail: you need to disassemble one model to make the 2nd or 3rd. There are not enough pieces to assemble all 3 models at once (or you have to buy 3 boxes). This needs to be specified because it is often not indicated and can be confusing. The pieces are articulated thanks to special pieces. This increases playability and realism. I recommend buying this set because it has special pieces for building articulated robots or dinosaur animals. The pieces provided are very useful and allow you to create all other models, using them alone or in combination with other Lego pieces in your collection.➡️ POSITIVE POINTS+ versatility and originality of the set.+ articulated pieces for robot and animal designs.+ the three models to build are very beautiful and playable or collectible+ very reasonable price for a quality set+ sought-after piece colors.➡️ NEGATIVE POINTS-Always the SAME negative point for me (if you follow me, you already know it): I DON'T UNDERSTAND why LEGO always makes such beautiful boxes, BUT that they are often thrown away after opening because they are torn and often not reusable. It doesn't cost more to make boxes that can be opened and closed securely, which allows you to keep the sets safe (in zip bags, then in the reusable box). Isn't that more intelligent, Mr. LEGO? This will always be my negative point, and I WILL continue until LEGO finally makes us beautiful, reusable boxes! I hope that all LEGO users will agree with me. (Support me guys...!!! and girls too, of course!!).➡️ CONCLUSION A very good set with an extremely interesting collection of special pieces, at a very reasonable price. It is even worth buying several sets!➡️ THE FINAL WORD I always value all products/companies that deserve it. On the contrary, I will criticize and denounce objectively and with arguments, products that have not satisfied me. All good things deserve to be honestly shared with the community. All bad deals or non-conforming products deserve just as much, or even more, to be reported. This is what comments and reviews are for. My honesty and objectivity are not for sale. I hope this comment has been USEFUL. If so, take just half a second to click on YES / USEFUL below, you have just given me "a virtual coffee" with a smile. This doesn't cost me anything except a great satisfaction and a huge encouragement to write many more comments. Thank you.-----------------------------------------------------------------------------------------------------------------------------------------------💗 SMALL GUIDE FOR LEGO BUYERS A small (non-pretentious) guide that I have written to answer some frequently asked questions to help "uninitiated" or "future enthusiasts" find a gift for themselves or for their loved ones... and to give you some TIPS to buy cheaper and avoid inflated prices. With LEGO, you can't go wrong, offering a LEGO set to a fan or future fan is always a useful gift (development of creativity) and appreciated (LEGO is always a good idea).⭐️ SOME USEFUL TIPS & TRICKS to know💡 Every year Lego releases several new models with prices set by Lego (catalog prices). The models from previous years are still available on the market with sometimes very interesting promotions (Amazon!). By waiting for flash sales, Black Friday, end-of-year promotions, etc., you can get very good deals and acquisitions. All it takes is a little patience. And, if there is no absolute necessity (a specific list of gifts), it is best not to rush into the new ranges and to focus on sets that were released last year or the year before. A newly released set displays the maximum price, its price can be halved (50% discount) one or two years after.💡 Know that Lego does not commercialize each model/set released forever. Lego releases a certain number of examples for each set, and in general, 2, 3 years later, or once all stock is sold out, the set is removed from Lego's official catalog. Once older models are no longer officially commercialized by Lego (usually 2, 3 years later, or once all stock is sold out), their prices begin to become completely crazy, a playground for profiteers/speculators who hope to make a profit by buying in large quantities and storing them, then they take advantage of the discontinuation of these models by Lego to inflate the prices (2x to 10x 20x). I denounce this practice and unless you are a crazy collector looking for this exact model and willing to pay a fortune... it is more normal to turn to many promotions or normal Amazon prices to choose your set to buy. Don't fall into the traps of these speculators.💡 Know that if you really want, you can find ALL the LEGO assembly manuals (sets present or long gone) for FREE on the LEGO.com website💡 Also, on the same LEGO site, you can fill out a form if ever a set you have purchased has missing pieces (yes, it can happen, which is annoying if you want to finish assembling the model). This happens very rarely because Lego has a rigorous control process, but it can happen. Lego will send you the missing pieces to your address. This is top-quality service.💡 That is why I continue to buy very regularly LEGO, for me, to give as gifts, and I trust LEGO for the quality of their products and the seriousness of their service. I trust Amazon for the delivery of my LEGO and for very interesting promotional prices.⭐️ Which LEGO? There are several types of LEGO: - Duplo very large bricks for very young children (easy to manipulate) - LEGO classic (the most common bricks, more or less the size of children's LEGO, it's often the first LEGO box received, to start playing and building many models. We used to build houses, cars with, but the models were coarse, sometimes a bit childish, but without any limits to inventiveness. The box often contains a fairly wide variety of different bricks and instructions to guide the child to assemble several models - More specialized LEGO sets: Star Wars, Friends, City, Batman, Ninjago, Architecture, Minecraft etc... with smaller bricks and more varied shapes, reproducing models better (houses, cars, star wars etc...) - And finally the CREATOR 3in1 (allowing to build 3 different models from the same set, LEGO ARCHITECTURE, LEGO MINECRAFT, LEGO TECHNIQUES, a bit like the LEGO meccano, with special pieces reproducing the mechanical part and sometimes the motorization. All LEGO pieces are compatible, you can combine them endlessly. The interest of LEGO goes beyond just assembling the models included in the instruction booklet. The child (or adult) starts to invent other models based on their imagination or trying to reproduce things in real life. Each family of LEGO has different types of pieces, even if many pieces are common. There are more "boy" themes (Star Wars, Speed Champions, Ninjago, Super Heroes, City, Technic) and others more oriented "girls" (Friends, Elves, Unikitty). The classics and Creator are more "mixed". But, it's all relative because there are boys who play with "Friends" and girls who do LEGO "Technic". You should start by offering a classic LEGO set, then a specialized set on a theme (Star Wars, Friends, Ninjago etc...) each theme adds additional pieces that, when combined with the basic pieces, expand the collection, the number and variety of pieces, and therefore allow the child to create more and more models with additional pieces. This is how a collection is created and a passion develops. THANK YOU LEGO AND THANK YOU AMAZON I hope this SMALL PRACTICAL GUIDE has been USEFUL. If so, take just half a second to click on YES / USEFUL below, you have just given me "a virtual coffee" with a smile. This doesn't cost me anything except a great satisfaction and a huge encouragement to write many more comments. Thank you.
A nice LEGO set. You can create multiple creations with it, which makes it extra fun and challenging.
My 5-year-old loves the 3-in-1 building sets and he was able to do it himself with very little help from me. This set was fun to build and the creatures are really cool!
My son requested this as a birthday gift, so I bought it. I previously bought a LEGO dinosaur 🦕, and he wanted something similar, so I chose this one. It has a lot of small parts and can be used to create three different models. He said that it was more difficult than the previous dinosaur 🦕, but he was enjoying building it. I'm glad I bought it.
This LEGO set offers three completely different variations, unlike other Creator sets, all three designs are well thought out. The troll is probably the weakest of the three, but it is still worth building.
All retailer prices
Current prices, stock and discounts per retailer.
Price context
Lowest, highest and average price for this set.
This context is based on 35 price points across 0 retailers. The chart on the page remains the full interactive source.
Price forecast
Conservative baseline for the next period.
The signal is mixed. Small movements are more likely than a large drop.
FAQ & set details
Pieces, year, RRP and retailer coverage.
Quick answers about price, stock and set data.