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.