There are a lot of Yu-Gi-Oh! monsters that can be classified as rank 4 XYZ. These monsters have high ATK and DEF stats, but also have unique effects that make them stand out from the rest. Here are the 15 best rank 4 XYZ monsters in Yu-Gi-Oh!: 15. Dartz, The Dragon of Darkness This dragon is one of the most powerful monsters in Yu-Gi-Oh! It has high ATK and DEF stats, as well as a unique effect that makes it immune to all damage. This makes it perfect for decks that want to take down their opponents quickly. 14. Black Luster Soldier - Dragon Knight This black Luster Soldier - Dragon Knight is one of the most powerful monsters in Yu-Gi-Oh! It has high ATK and DEF stats, as well as a unique effect that makes it immune to all damage. This makes it perfect for decks that want to take down their opponents quickly and easily. 13. Stardust Dragon - Stardust Warrior This dragon is one of the most powerful monsters in Yu-Gi-Oh! It has high ATK and DEF stats, as well as a unique effect that makes it immune to all damage. This makes it perfect for decks that want to take down their opponents quickly and easily. 12. Thunderdragon Rider - Thunderdragon