@
littleoni No no no That is still Touma's Dragon and not Izzard's Imagination.
If we consult Volume 2 of the novels The Dragon 'at that time' was made visible because of Touma's blood.
Volume 2 Chapter 4 part 2:
"An abnormal change seemed to appear on the sliced off part on Kamijou’s right shoulder that was spurting out blood like a fountain. The blood flow started to increase, and it looked like a transparent glass statue had fresh blood spilled all over it, as an unbelievable object started to shape itself."
Here is a another quote from volume 2 about Touma having doubts (Volume 2 Chapter 4 part 2):
"Logically, it should be like that… but in that situation,
did Aureolus Izzard really think of such a tremendous imagination like
‘
there would be a transparent Dragon King’s Head from the sliced-off part on Kamijou’s right arm’?
Though the probability was low.
But what if, just what if, that monster was unrelated to Aureolus’ power?"
-end
Also if we go beyond and read Index NT 18 it would suggest that
-The Invisible Thing grows
Reference NT 18 Chapter 4 Part 4:
.....
Aiwass: “Ha ha!! It seems to have grown some, but it still has a long way to go. And its purity leaves much to be desired. Aleister, you’ve been making detours, haven’t you!?”
Also those Dragons seem to be
'related' to Thelema, and most probably Beast666.
And if Fan theory is true that those dragon/s may have been
The Stooping Dragon then,
It kinda fits the narrative of Imagine Breaker being used to save people and the Invisible Thing being used to condemn people.