One Piece has long revealed the existence of three ancient weapons: Poseidon, Pluton, and Uranus. They’re capable of sinking the world, and each has different forms.
Poseidon is a special mermaid with the ability to talk to sea kings and command them. Meanwhile, Pluton is a giant battleship that is currently located deep beneath Mt.Fuji in Wano Country. As for the third ancient weapon, Uranus, One Piece has yet to confirm what it is officially. However, One Piece Chapter 1116 may hint that Uranus erased Lulusia.
Following the thread about Uranus erasing Lulusia Kingdom of existence, we should also go back to the topic of what happened to God Valley.
At first, the only logical explanation was that Whitebeard himself sinked the island. It was said he had the power to do so (or the power to destroy the world which is even bigger of a feat). Maybe he awakened and couldn’t control it? Maybe not? Who knows? But that was at a time we wasn’t aware of the powers of ancient weapons. Now, we know they are essentially made to destroy entire islands.
So the question is, could have being Uranus responsible for God Valley to disappear? But wait! How is that even a question if we just learned Vegapunk only now recreated Mother Flame that was responsible for Lulusia Kingdom incident? Funny huh?
More than 20 years later, around the time I guess Vegapunk joined the World government. Maybe Imu still had a charge of the weapon to use, and used to take out the guy who was willing to dethrone him as king of the world: Rocks D. Xebec. But wait! Then why he used now against Lulusia Kingdom instead of one of the Yonko territories?
Imu already had his/her eyes on Vivi, Luffy and Teach. Well, Vivi was at Reverie, so she would be pretty much captured and maybe killed if wasn’t for the incompetent of CP0. So Imu should have choose either Hachinosu (without being sure if Teach was there or not I guess) or Wano.
Wano should definitely being the choice since he probably already knew Kaido, Big Mom and Luffy was there. Besides that Wano is pretty much the biggest country against the World government and the perfect spot for an alliance HQ against them. Then why not choosing them?
Well, maybe because Wano supplies the World government with weapons? The second, the World government doesn’t use the ancient weapons against Yonkos because they don’t have much Mother Flame to destroy Yonkos – who are said to be some of the strongest in the world. Also, they were using Yonkos in their benefit or both: to maintain Balance of power.
