Theories & Speculations

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  1. One Piece (Series & Plot) 752
  2. Characters 1,406

Top Theories/Speculations

  1. Theory Who Are They Anyway?
    Let's peek inside - by Shu
    Updated: Apr 17, 2017
  2. Theory Ancient Weapons: Astronomy, The real source
    Moons of Pluto, Uranus and Neptune are the inspiration for Ancient Weapons - by CAMUNAI
    Updated: Aug 31, 2017
  3. Theory Sanji's Hidden "Cosmic" Power
    An old SBS may hold a clue to Sanji's true power. - by Theo Ries
    Updated: Oct 10, 2016
  4. Theory Journey to Uranus :Winged Race
    4th Ancient Weapon -Devil fruits origins & Secret of Yami Yami no mi - by Dave
    Updated: Mar 28, 2017
  5. Theory Luffy's Awakening 3 :Haoshoku Haki
    The return of True King : Applications of Conquer's Haki - by Dave
    Updated: Mar 7, 2017

View All Featured Theories & Speculations

  1. Theory Elbaf is under the protection of Shanks

    Several points that make me think that Shanks is the Yonkou who owns Elbaf's island.
  2. Theory Wedding Crash of The Axis Powers: Fallout of Big Mom & The Vinsmokes

    The references of the current arc's characters and its possible future events
  3. Speculation The King and Queen Calamities of Kaido

    A speculation about the other 2 Calamities of Kaido
  4. Speculation Oda's Path in the Snow

    Predicting the Events of 2017 with Deliberate Color Page Clues
  5. Speculation The Echo Of The Pirate King - The Man Roger Is Waiting For

    Roger left behind his voice on Raftel for Luffy to hear.
  1. Gokinic1997
    0/5, 0 ratings
  2. Tokiro Oumaga
    4/5, 1 rating
  3. jinz

    Speculation Smoothie's Sword Style: Drill Sword Technique

    Connecting Smoothie's devil fruit ability to her swordsmanship
    3.8/5, 5 ratings
  4. Tokiro Oumaga

    Theory Life Return - Untapped Potential

    The power to have absolute control over one's body; is there anyone who could really use that?
    4.8/5, 5 ratings
  5. Kingdoffy03
    0/5, 0 ratings
  6. Law0
    4.6/5, 5 ratings
  7. Tokiro Oumaga
    5/5, 1 rating
  8. Kingdoffy03
    2/5, 1 rating
  9. King of beasts kaido
    2/5, 1 rating
  10. tira_de_asado

    Speculation Luffy, The Pseudo-Scientific Antithesis to Gravity.

    Speculation of how Gomu-Gomu-no-Mi will be harnessed against BB in relation to physics.
    5/5, 2 ratings
  11. King of beasts kaido
    2.5/5, 2 ratings
  12. Jeffrey zorofan
    0/5, 0 ratings
  13. King of beasts kaido
    3/5, 2 ratings
  14. Name Is C
    4.5/5, 2 ratings
  15. Rej Discussions
    3.5/5, 4 ratings
  16. King of beasts kaido

    Speculation Yonko crew themes

    The theme of the red haired pirates and Blackbeard Pirates
    0/5, 0 ratings
  17. TwinKidd_B

    Theory Myelin, The Way to Gear 5th

    Haki isn't the only way to create a new gear...let's see what awakening can do
    4.4/5, 5 ratings
  18. Echi

    Theory The mysterious guy from the Revolutinaries...

    Who is the mysterious guy from the Revolutinary army and what could be his powers?
    5/5, 5 ratings
  19. King of beasts kaido
    4.5/5, 2 ratings
  20. raihan009
    0/5, 0 ratings
  21. Rej Discussions
    5/5, 1 rating
  22. Wolfram87
    4/5, 6 ratings
  23. Tokiro Oumaga

    Theory Throw 'Em in the Brig - The Straw Hats' Jailer

    Every so often a crew needs to take prisoners, but who's going to look after them?
    4.5/5, 4 ratings
  24. Onepiecefan9867

    Theory Kaido's tarrot card crew a different Idea

    Ideas on how Kaido crew is set up that is totally differnt than most have guessed.
    3/5, 1 rating
  25. Asura21
    3.75/5, 4 ratings
    Updated:
    Oct 15, 2017
  26. Nessos
    4.66667/5, 9 ratings
    Updated:
    Oct 15, 2017
  27. Tokiro Oumaga

    Theory What She's Made Of - Pudding's Possible Profession

    An argument against Straw Hat Pudding is that she doesn't fit any roles, but she actually fits a few
    5/5, 4 ratings
    Updated:
    Oct 15, 2017
  28. Udell
    4/5, 2 ratings
    Updated:
    Oct 14, 2017
  29. King of beasts kaido
    3.33333/5, 3 ratings
    Updated:
    Oct 14, 2017
  30. Sk1p1o
    4.5/5, 2 ratings
    Updated:
    Oct 14, 2017
  31. King of beasts kaido
    4/5, 1 rating
    Updated:
    Oct 13, 2017
  32. Rej Discussions
    4.66667/5, 3 ratings
    Updated:
    Oct 13, 2017
  33. Shale
    0/5, 0 ratings
    Updated:
    Oct 13, 2017
  34. Vanwesn
    4.5/5, 2 ratings
    Updated:
    Oct 13, 2017
  35. Tokiro Oumaga

    Theory Partners in Crime - Together Forever

    It's hard to split up friends, and that might be what disqualifies certain prospective Straw Hats
    4.83333/5, 6 ratings
  36. Maxpower818
    2/5, 1 rating
    Updated:
    Oct 13, 2017
  37. Steins;Gate

    Theory The Concept/Schema of Logia-Powers

    Why are specific powers made into logia-powers? Explanation of the background & outlook into future.
    4/5, 2 ratings
    Updated:
    Oct 13, 2017
  38. Sk1p1o
    5/5, 1 rating
    Updated:
    Oct 12, 2017
  39. Nanashi
    5/5, 3 ratings
    Updated:
    Oct 12, 2017
  40. Rej Discussions
    2/5, 1 rating
    Updated:
    Oct 11, 2017