Theory time, low effort and quick mafz... 
Last two chapters began the era of Sword Piece.
Just when people coped that only Zoro cares about swords and that swords are something nobody gives a crap about, a wild sword supremacy was waiting behind the corner to take the stage. Or in the words of despicable Sommers - these Swords are a Power that rules the World! And the King of the world cares about them.
Each of the Sun God and God of War have tasted some of that Sword Piece and both are currently on a deathbed after brief exposure to lethality...
Enough bragging about the sword supremacy, we are here because of a theory.
Imu began pulling one sword after another as the time passed and Sommers just now dropped names of two more - Tohu and Muramasa...
However, all those blades we saw until now have one thing in common - they are not Imu's weapon. All of those belong to 19 kings who left them in front of the throne and Imu merely stole them.
That brings us to the main point - which sword is Imu's own? I will take the freedom of saying that each of those 20 swords are signatures of the 20 kings. They are the defining trait of each WG founding king...
My theory here is that we already saw Imu's sword in action, several times but we didn't realise it!
What is Imu's defining trait? His tail!
That's his sword! A living thing, like Shamrock's Cerberus, so to say...
Imu's tail has been the spotlight stealer from the very first action panels of Imu. When Kobra hit the nerve, Imu's tail pierced him right away.
When Sabo was escaping the hell between the clouds, Imu's tailed pierced him.
When Imu encountered Citizen of Hell(funny meme ngl), his tail acted right away.
Tail here, tail there, tail everywhere...
Ever since the fighting started and weapons started taking the spotlight, the tail has been oddly quiet...
I assume, his sword is supreme grade, it would be funny if it wasnt and it has probably 2 defining abilities, at least. It is probably fed a mythical Zoan, some kind of serpent and that's why we see it circling around Imu as if it protecting him and acting as if it was alive. While Imu can manipulate his body, the tail behaves like something that shouldn't be among his freedom of manipulation...
The second ability I suspect is a more interesting one, it has the ability to freeze time! Or to freeze anything in space for a short while.
Obviously, the inspiration for this comes from Foxy's Noro beams, or the vice versa...
And we saw this very thing already in action!
When Zoro attacked Imu and was blocked by the tail, what did he do? Nothing! As if he was frozen in time and space... It was odd to me since the first time I saw it, he didnt react, he didnt move, he didnt have facial expressions...
Why do I think that was Imu's sword?
Well, how did Imu encounter the Left wing, the kicker of the Strawhats? With a kick of his own.
Would it be wild if he encountered the Right wing, a swordsman of the Strawhats with a sword of his own?
Does it makes sense that this very ability is the reason why Shanks and Luffy have Future Sight? To counter this exact time/object freezing ability?
Is this a fitting sword for the guy with a 20-sword swallowing style?
Last two chapters began the era of Sword Piece.
Just when people coped that only Zoro cares about swords and that swords are something nobody gives a crap about, a wild sword supremacy was waiting behind the corner to take the stage. Or in the words of despicable Sommers - these Swords are a Power that rules the World! And the King of the world cares about them.
Each of the Sun God and God of War have tasted some of that Sword Piece and both are currently on a deathbed after brief exposure to lethality...
Enough bragging about the sword supremacy, we are here because of a theory.
Imu began pulling one sword after another as the time passed and Sommers just now dropped names of two more - Tohu and Muramasa...
However, all those blades we saw until now have one thing in common - they are not Imu's weapon. All of those belong to 19 kings who left them in front of the throne and Imu merely stole them.
That brings us to the main point - which sword is Imu's own? I will take the freedom of saying that each of those 20 swords are signatures of the 20 kings. They are the defining trait of each WG founding king...
My theory here is that we already saw Imu's sword in action, several times but we didn't realise it!
What is Imu's defining trait? His tail!
That's his sword! A living thing, like Shamrock's Cerberus, so to say...
Imu's tail has been the spotlight stealer from the very first action panels of Imu. When Kobra hit the nerve, Imu's tail pierced him right away.
When Sabo was escaping the hell between the clouds, Imu's tailed pierced him.
When Imu encountered Citizen of Hell(funny meme ngl), his tail acted right away.
Tail here, tail there, tail everywhere...
Ever since the fighting started and weapons started taking the spotlight, the tail has been oddly quiet...
I assume, his sword is supreme grade, it would be funny if it wasnt and it has probably 2 defining abilities, at least. It is probably fed a mythical Zoan, some kind of serpent and that's why we see it circling around Imu as if it protecting him and acting as if it was alive. While Imu can manipulate his body, the tail behaves like something that shouldn't be among his freedom of manipulation...
The second ability I suspect is a more interesting one, it has the ability to freeze time! Or to freeze anything in space for a short while.
Obviously, the inspiration for this comes from Foxy's Noro beams, or the vice versa...
And we saw this very thing already in action!
When Zoro attacked Imu and was blocked by the tail, what did he do? Nothing! As if he was frozen in time and space... It was odd to me since the first time I saw it, he didnt react, he didnt move, he didnt have facial expressions...
Why do I think that was Imu's sword?
Well, how did Imu encounter the Left wing, the kicker of the Strawhats? With a kick of his own.
Would it be wild if he encountered the Right wing, a swordsman of the Strawhats with a sword of his own?
Does it makes sense that this very ability is the reason why Shanks and Luffy have Future Sight? To counter this exact time/object freezing ability?
Is this a fitting sword for the guy with a 20-sword swallowing style?
They will slowly and slowly learn the truth.
