71843 Rogue's Mech Dragon Rider

LEGO.com description[]

Rogue’s Mech Dragon Rider (71843) combo ninja toy lets boys and girls aged 8 plus enact tales from season 3 of the NINJAGO® Dragons Rising TV show. Kids can separately play with a mech toy and the first-ever NINJAGO robot dragon toy before combining them into the awesome Rogue’s Mech Dragon Rider.

The mech toy has movable arms and legs, a chest that opens to place a minifigure inside and a sword, while the dragon figure has movable wings, head, jaw, legs and tail and a sword. There are 4 minifigures: ninja warriors Rogue and Arin, and the villainous duo of Rox and a Spectral Dragonian Warrior who have a banner with a secret message that can only be read using Arin’s reveal blade accessory.

Kids can attach the mechs from Kai’s Mech Storm Rider (71830) and Kai’s Mech Rider EVO (71783) playsets (sold separately) to the back of this set’s dragon figure. This playset can be created with the LEGO® Builder app, which guides you and your child on a building adventure. Set contains 584 pieces.

• Ninja toy for kids – Boys and girls aged 8 and up can play out battle scenes from season 3 of the NINJAGO® Dragons Rising TV show with Rogue’s Mech Dragon Rider adventure toy
• Mech and dragon toy – Kids can play separately with the toys or attach the posable mech to the back of the first-ever NINJAGO® mech robot dragon to create Rogue’s Mech Dragon Rider
• Posable figures – Mech toy has movable arms and legs, an opening chest to place a minifigure inside and a sword, while the dragon toy has movable wings, head, jaw, legs and tail, plus a sword
• 4 minifigures – Rogue, Arin, and the villainous duo Rox and a Spectral Dragonian Warrior who have a banner with a secret message that can only be read using Arin’s reveal blade accessory
• Birthday gift for kids – This action toy provides a fun build-and-play experience and is a birthday gift idea for kids who love pretending to be their ninja heroes
• Interchangeable mechs – Kids can also attach the mechs from Kai’s Mech Storm Rider (71830) and Kai’s Mech Rider EVO (71783) playsets (sold separately) to the back of this set’s dragon figure
• A universe of ninja toys – LEGO® NINJAGO® sets let kids escape into a fantasy world of adventures with their ninja heroes
• Measurements – This 584-piece LEGO® battle and adventure set for kids include Rogue’s Mech Dragon Rider figure, which stands over 7.5 in. (19 cm) tall^[1]

Designer notes[]

My set number 14 is the Rogue's Mech Dragon Rider, and being a huge fan of the character, I'm super happy to have a chance to do a full-on Ja... I mean Rogue set!

Back in 2022, I was sitting at the Build Through meeting for the Elemental Dragon vs The Empress Mech, and first thing I did upon building the models I put the Empress Mech on Jiro and said jokingly "Hey we need to make a dragon mech rider!" Turns out the sentiment was shared by many people on the team when we had our 2025 brainstorm session, so this concept was sold pretty effortlessly

We explored several types of dragon could be and this raptor-inspired direction was a clear win when we tested with kids, and personally I think the final head design also brings some more dinosaur DNA to it as the bulky lower jaw reminds me of a T-Rex, which I think it's a pretty cool mix haha

Bipedal dragons are always a structural challenge but I lucked out as our dragon master Dimi has previously dealt with most of the foreseeable issues when designing Jiro and Thunderfang already! I kind of just took all the learnings from him and his models and it went pretty smoothly, so I had a lot of time polishing the details on this guy. The medium size of the model also makes this guy super posable, especially with the mech on the back to balance things out!

The mech was also super fun to design, I tried to bring every idea I have to differentiate it from the previous EVO mechs we got over the years, and I'm really happy with how the shoulder cape and the geta feet! (credits to Niek for the brilliant idea) And yes it's compatible with other mech rider sets!

As always shout out for our graphics designer Angel who did all the amazing graphics and Benjamin who did the building instruction on this. Teamwork!^[2]

Trivia[]

• This is the first "Mech Rider" set that does not center around Kai.
• Rox is currently exclusive to this set and is the first Ninjago minifigure to use the "mid-leg" piece.
• Rogue does not come with his armor piece in this set.

Gallery[]

Building instructions[]

• 71843 Rogue's Mech Dragon Rider (1)
• 71843 Rogue's Mech Dragon Rider (2)

References[]