#genius bottle

[luminous777]

Another thought came to me why did they make Great Dragon Cross-z even though Magma is stronger, if you look at Genius it has all those bottles on it. The thought occurs what if Genius works like Cosmic States and all the standard bottles unite to make the form. Because of this Banjou wouldn’t have a base form, since he couldn't use the Dragon bottle. Great Dragon is the solution to that. 

[luminous777]

When Sento turns into Genius form I totally hope he says this: 

It would fit so well

[luminous777]

Kamen Rider Build Genius Bottle

I believe that the Genius Bottle that gives Sento his final form will come from Katsuragi.

Not Katsuragi made it or designed it and hid it away but, he will be the bottle. His ‘essence’ rather than smash essence.

At the end of the opening we see Sento and Katsuragi walk towards then phase through one another. Next Katsuragi turns his head back before turning into particles.

In the scene they are surrounded by the formulas and equations that appear during Build’s transformations. The way Katsuragi glows then fades is similar to how Banjou’s girlfriend did before she became the Dragon Bottle.

The bottle could be created by Sento going into the machine where Misora purifies bottles. In there Misora see fragments of Vernage’s memories. So it could be possible that in there Sento comes into contact with a manifestation of Katsuragi created from the memories that Sento no longer has access too. And after some talk or a battle in the mind those memories become the bottle that creates genius. Or something similar could happen due to Pandora Box shenanigans.

This is just an interesting thought I have at this current time.