The difference between western and eastern dragons was that they could control the wind and rain. When the dragon moved, the wind and rain followed. However, the giant dragon had a strong Dragon's Might, but that would not change the weather.
However, when a dragon's strength reached a certain level, it could use the elements it controlled to connect with the natural power between heaven and earth and cause a large area of phenomena. For example, the powerful red dragon could plunder the earth with flames and make it red for miles, and the blue dragon could cause storms and lightning.
However, the Dragon King Aether was different. He had used bloodline gene technology to extract all the genes of the greatest dragons, and then fused them with several highly confidential techniques or special cards. After that, he added some strange things, but the bloodline he created turned out surprisingly powerful.