Legendary Weapons of One Piece: Theories on Uranus, Poseidon, and Pluton

The ancient weapons are among One Piece’s greatest enigmas. Revered as instruments of massive power, these legendary artifacts—Pluton, Poseidon, and Uranus—could tip the scales in the New World’s ever-shifting power struggle. But what exactly are these weapons, and what secrets do they hold? In this article, we’ll explore their known histories, possible connections, and theories about their true purpose.

Body:

  • Pluton: The Warship of Mass Destruction
    Introduced early in the series, Pluton is described as a massive battleship capable of leveling entire islands. Franky destroyed the blueprints on Water 7, but the ship itself may still exist. Theorists believe that Pluton could be hidden in Wano, given its shipbuilding history and connections to the Kozuki clan. Others speculate that Pluton’s revival could play a pivotal role in the final battle between Luffy’s allies and the World Government.
  • Poseidon: The Power to Command the Sea Kings
    Poseidon’s identity is revealed to be Shirahoshi, the mermaid princess who can command the Sea Kings. This ability could unite the underwater world and the surface world, potentially fulfilling the promise of an era without barriers. Fans debate how her role will unfold—will Shirahoshi stand alongside Luffy as an ally, or will her power provoke new enemies?
  • Uranus: The Sky Weapon
    The least understood of the three, Uranus remains shrouded in mystery. Some theories suggest that Uranus is a weapon capable of controlling weather, possibly tied to the mysterious Moon or the sky islands. Others think it might be linked to the Celestial Dragons and their dominance over the world. Whatever Uranus turns out to be, it’s likely to emerge in the series’ final arcs.
  • Connections Between the Weapons
    One compelling theory is that all three ancient weapons must be brought together to fulfill a prophecy from the Void Century. The Poneglyphs may hold the instructions for their use, and the One Piece treasure itself could be the key to activating them. Could the ancient weapons be the tools needed to break the Red Line and unite the seas? Or are they meant to destroy the oppressive rule of the World Government once and for all?

Conclusion:
The ancient weapons have remained an enduring mystery throughout One Piece’s story. As the Straw Hat crew ventures deeper into the New World, we inch closer to understanding their purpose. Whether they bring destruction or a new era of peace, one thing is certain: the ancient weapons will play a critical role in the world’s ultimate transformation.

Official Manga and Anime Sources:

One Piece Wiki:

  • The One Piece Wiki on Fandom has detailed pages on each of the ancient weapons:

Interviews and SBS Columns:

  • The SBS sections of official manga volumes often feature insights from Eiichiro Oda. These can be found in VIZ’s digital volumes or in the print editions available at retailers like VIZ.com or Amazon.

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