If Luffy has opened the fourth gear, it must be Naz, but if it has already opened the fourth gear, Luffy and Naz must be Luffy, because the speed can't keep up. After Luffy opened the fourth gear, the speed can be comparable to the first order of the Monkey King Super Saiyan, which is the so-called teleport speed. Even if Naz releases the dragon sword, he will end up with Luffy at most, because Luffy is too fast. However, the fourth gear of the road needs blowing. At that time, if Naz directly releases the intention of killing the dragon, he can directly melt Luffy (Luffy is made of rubber, Naz's temperature can melt the giant dome of the stadium with magical enchantment, and when he opens the fourth gear, domineering can only be wrapped around his hands and chest, but not all over his body. The reason is that there is a conflict between domineering and evil fruit, so Luffy only wraps his hands, feet and head with domineering when playing Ming Ge. As for the domineering spirit on the chest, I actually think that the characteristic of your fourth gear meeting should be the awakening skill of the devil's fruit, just like Ming Ge turned the building into a line), but there is another point, that is, Naz who opened the Lei Yanlong mode can fight Luffy. When playing Hades, there is a picture of Lax traveling in the desert. As a result, after hearing President makarov's words, the camera turned to Hades and put a trick to knock Luffy down. A flash of lightning in the sky is Lax, and the dragon slayer can actually assimilate with his own attributes (for example, the shadow dragon becomes a shadow, the light dragon becomes a light, and Lax becomes lightning), and lightning is also light, so Lax can get there so quickly. A year ago, Naz only showed how to start the Lei Yanlong mode, but he didn't do much, so this should be a suspense left by Mashima Hiro, which means Naz can start the Lei Yanlong mode. Get the movement of the speed of light, so you can completely defeat Luffy, and I think Naz can take the initiative to open the power of the dragon after one year, while Long Lin can only use the magic of the dragon-destroying master (the dragon-destroying master who opened the power of the dragon in the history of the demon tail was only defeated by the dragon-destroying master), so the simple point is that Luffy has no chance of winning, but if Luffy can surpass the dragon, he can draw with Naz, after all, Luffy can play through.