LEGO Ninjago 71721 Skull Dragon of the Sorcerer's Dungeons: Griffinbringer I bought this a few years ago, and my son gave up halfway through building it. I worked while keeping the pieces in the box, so I think everything is there. However, I can't say for sure (a tool to remove the LEGO bricks is missing). Some parts are already assembled, but since my son isn't good at LEGO, I'm not sure if it's correct. Would anyone like to take it apart and try building it from scratch?