The leader of the Forbidden Five, Rox, and a Spectral Dragonian Warrior have invaded the Merged Lands. Join forces with Arin and Rogue to fight back! You must attach Rogue’s mech to the back of the first-ever NINJAGO® mech robot dragon and create an awesome Mech Dragon Rider to swoop into battle. Now with this combined power and your arsenal of weapons you can triumph over the forces of evil! • 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) andKai’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