You are going to Watch Blue Dragon Episode 51 English dubbed online free episodes with HQ / high quality. Stream Anime Blue Dragon Episode 51 Online English dub Shu The final battle arrives between Shu and the more powerful demon Zola. After Shu defeats Zola everyone begins the resealing of the darkness. But they learn that in order to free the world of darkness, a sacrifice of the shadows must be made. So everybody uses up every last drop of energy that their shadows possess and they reseal the darkness. They all lose their shadows in the process.