Overview
71855 Ninja Dragon Riyu's Battle is a Ninjago: Dragons Rising - Season 4 set that was released on January 1, 2026. It includes Draconus Arin, Draconus Form Nya, a Loyalist, a Mutation Monster and Riyu.
LEGO.com description
LEGO.com description[]
Boys and girls ages 7 and up will love building this LEGO® NINJAGO® Ninja Dragon Riyu’s Battle (71855) ninja toy and recreating scenes from season 4 of the NINJAGO Dragons Rising TV show. This impressive playset features a dragon toy with posable wings, legs, feet, arms, wrists, claws, head, tail and shoulders, and it’s armed with a large sword and shuriken weapon accessories. Kids can also make an exciting swap and use the weapons from the Cole’s Mission Mech & Dragon Zane (71854) set (sold separately). This LEGO dragon set comes with 4 minifigures: ninja warriors Arin and dragon form Nya and villains Mutation Monster and Loyalist. The LEGO NINJAGO range of make-believe toys for kids includes mechs, dragons and temples for fans to role-play ninja action. Kids can build each playset with confidence using the LEGO Builder app – zoom, rotate in 3D and track progress with easy-to-follow digital instructions. Set contains 347 pieces.
- NINJA TOY – With this LEGO® NINJAGO® Ninja Dragon Riyu’s Battle (71855) set, boys and girls ages 7 and up can play out battle scenes from season 4 of the NINJAGO Dragons Rising TV show
- POSABLE DRAGON FIGURE – Dragon toy has posable wings, legs,feet, arms, wrists, claws, head, tail and shoulders, and it’s armed with a large sword and shuriken weapon accessories
- 4 NINJAGO® MINIFIGURES – Play out heroes and villains battles with ninja Arin and dragon form Nya taking on villains Mutation Monster and Loyalist, who are all armed with weapon accessories
- INTERCHANGABLE NINJAGO® WEAPONS – Kids can make a swap and use the weapon accessories from Cole’s Mission Mech & Dragon Zane (71854) playset, sold separately
- DRAGON GIFT FOR KIDS – This battle toy provides a fun build-and-play experience and is a ninja gift idea for kids with a passion for fantasy and adventure toys
- A FUN WAY TO BUILD – Let the LEGO® Builder app guide kids on an intuitive building adventure, where they can save sets, track progress and zoom in and rotate models in 3D while they build
- A UNIVERSE OF LEGO® NINJAGO® SETS – This extensive collection of kids’ toys lets ninja fans and children escape into an immersive fantasy world for imaginative play with their ninja heroes
- DIMENSIONS – This 347-piece fantasy adventure toy features a Riyu dragon toy measuring over 5.5 in. (14 cm) high, 13.5 in. (34 cm) long and 13.5 in. (34 cm) wide[1]
Trivia
Trivia[]
- Draconus Form Nya is exclusive to this set.
- This is the cheapest way to get a Loyalist and Draconus Arin.
- This set is reminiscent of 71809 Egalt the Master Dragon, as they are both sets composed of a ninja dragon wearing a red fabric belt and using ninja weapons, especially a dragon-sized sword.
- The weapons included in 71854 Cole's Mission Mech are compatible with Riyu and vice versa.
- This set is the only way to get a complete version of a Mutation Monster.











