1. ShirahoshiShirahoshi, the mermaid princess, is the reincarnation of Poseidon.
The mermaid princess Shirahoshi in One Piece is a character of enormous size, nearly the same dimensions as the Thousand Sunny ship. Not only is she a beautiful mermaid, but Shirahoshi is also the reincarnation of Poseidon, one of the three Ancient Weapons.
Her ability to command sea kings can potentially be used to destroy an entire island instantly. Currently, Shirahoshi seems unaware of her own immense power.
2. Whitebeard (Edward Newgate)
Whitebeard is on this list because at the height of his power, he was a formidable warrior, capable of standing toe-to-toe with the Pirate King, Gol D. Roger, in battle.
Whitebeard possessed the Gura Gura no Mi (Tremor-Tremor Fruit), a Paramecia-type devil fruit that allowed him to create powerful tremors and earthquakes. During the Marineford War, we witnessed Whitebeard using his powers to shake the very ground and create massive shockwaves.
This is a dark prophecy suggested by Sengoku that implies he could potentially destroy the world.
3. Blackbeard (Marshall D. Teach)
After Whitebeard’s death, the dark fruit Gura Gura no Mi was acquired by Marshall D. Teach through a secret method.
Currently, Blackbeard wields the powers of both the Yami Yami no Mi and Gura Gura no Mi. The Yami Yami no Mi is a Logia-type fruit that allows its user to control darkness and gravity. The darkness can manifest like a black hole, sucking in and destroying everything in its vicinity.
The combination of Gura Gura no Mi and Yami Yami no Mi gives Blackbeard the potential to destroy entire islands or even threaten the world itself.
4. Loki
Loki’s appearance in One Piece chapter 1130.
Loki claims to be the God of Destruction, the one who will bring about the end of the world. However, it is clear that this title does not rightly belong to him, as the true power of the God of Destruction actually lies with Luffy. Nevertheless, Loki’s declaration of ending the world is not just bravado, as both Dorry and Brogy also feel that the world would be doomed if Loki were to be unleashed.
There are still many unknowns regarding Loki’s true strength, as he has only been hinted at through various legends passed down in the Elbaf royal family.
5. Imu
Imu is the highest authority of the World Government, the one who occupies the Empty Throne and secretly controls the world. Imu possesses an unparalleled power that even Sabo cannot confront. It is believed that the mysterious power of Imu derives from the Empty Throne, and the will of this hidden figure may extend to the long-lived Jaygarcia Saturn, who has passed through time.
Imu has used a mysterious weapon to wipe out the nation of Lulusia. Chapter 1089 demonstrated that this led to a global catastrophe. One of the most shocking consequences of this annihilation is the complete disappearance of the island, which has drastically altered the global landscape. The world of One Piece is now at risk of falling into chaos.
