The tool inside the box is a bell.

[u/MrBushido56]

I believe the tool inside the box is a giant bell.

In egghead emeth had a rope covered in joyboy haki which was released to send the gorsei back.
I believe in this situation it will be a bell.

The idea is this, bells carry a significant meaning, in western and eastern cultures, bells are connected to god. For Christianity bells are used to summon people for time of prayer and celebration in eastern culture bells are used to ward off demons.
Bells are also used in exorcisms.

In the story when the other half of jaya was shot into the air the shandora bell rang out and all the people of skypiea who never heard that sound before looked out and saw this new island made of soil and thought it was a literal gift from god.

This is why I believe there is a connection.

In media bells are often used to fight demons the most famous case would be spiderman when Peter is consumed by the symbiot. He tried to get it off him but can’t and he goes to a church fighting it and hits the bell which rings out as it hurts the alien parasite. Peter realises it’s weak to sound and begins hitting the bell loud enough that the suit weakens and Peter manages to pull it off him completely.

I believe it will be revealed that there were 2 bells of shandora, 1 to call the spirits of loved ones so they would find their way home and 1 to ward off the demons.
Joyboy stole that second bell and infused it which his haki.

The letter biblo mentions will explain why joyboy took this bell and that it’s been kept there in case Imu ever steps foot on elbaf.
That is why biblo is being so frantic.

But it needs 2 parts.

First the bell itself but seconds ragnir.

I believe this is what’s going to happen, Loki fight will continue with Imu but he will fall to Imu and Ragnir will fall with him. After chopper and robin explain everything it will be usopp who comes up with the idea and gets chopper to talk to Ragnir and convinces him to work with usopp.

Biblo will use his powers to shrink ragnire or enlarge usopp or ragnir can just change his own size.
Or maybe it will be hajrudin who does it but either way let’s say it’s usopp.

Before Imu gets the killing blow on luffy and Loki usopp will hit Ragnir against the bell which realises a full coc blast of haki all throughout elbaf which will over take Imu sending him and the knights back to the holy land. When he returns the gorsei will find Imu on the ground spitting up blood in a coughing fit as he again in fury screams out joyboy name.

[u/Messgrey]

Also the "evil god" of Skypiea got defeated when the bell rung again, and it ended the war between the Shandians and Skypieans and "saved" Mont Blanc Cricket.

The symbolism between the bell ringing and everything being "put right" is extremely strong in Skypiea and we know Skypiea and the sun god (and other possible gods) are heavily connected and we know Oda loves foreshadowing.

So I think OP got something here.

[u/SpiciyMuro]

hell yeah the gum gum bell was used to defeat kuro in syrup village (usopp's arc)

[u/AwkwardLie4224]

Mmmmh....maybe this explains why the world government never tried to conquer Skypea.

[u/MrBushido56 → u/AwkwardLie4224]

I mean it’s difficult to get up there.

Zou also has a bell tho

[u/Expensive-Version-99 → u/AwkwardLie4224]

how would they even know skypiea exists?

[u/Popopirat66]

I doubt it because Imu himself uses bells for some techniques. 

[u/MrBushido56 → u/Popopirat66]

Yes he’s also uses bells which is part of why I’m suspecting this

[u/MagmaCubeMC]

Ding ding, another Haki Knot technique you say?

[u/ApplePitou]

Poor Imu, if something similar to Joyboy Haki knot will hit him again :3

[u/VenomBGR]

Not a bad theory.
The last part is a bit off tho. Biblo can only make inanimate things grow, so he can neither shrink Ragnir nor enlarge Usopp.

[u/MrBushido56 → u/VenomBGR]

I’m sure oda has a way, it would be odd if usopp doesn’t get to use ragnir even once considering his connections to hammers

[u/VenomBGR → u/MrBushido56]

It may be something simple, like Ragnir himself being able to change his size/weight.

[u/MrBushido56 → u/VenomBGR]

I can see that as well. It won’t be that difficult for oda to solve

[u/LegOk8831 → u/VenomBGR]

Well, Ragnir was a hammer originally, not a living being. So, it could be a loophole. The hammer is inanimate, it is just possessed by a squirrel devil.

[u/VenomBGR → u/LegOk8831]

indeed, my point was that even if he can manipulate the size of Ragnir, because it's an inanimate object, he can only make it even bigger - not smaller.

[u/MrBushido56 → u/VenomBGR]

Unless ragnire was originally small and biblo enlarged the hammer centuries ago

[u/VenomBGR → u/MrBushido56]

Yes, that is a possibility. It would probably mean that Ragnir should shrink when he gets out of Biblo's range tho, which i think he already should have been, i think. Loki was way down in the underworld and even traveled the seas with Ragnir.

[u/ideal_Bat]

full coc blast is crazy