Right now, Jason felt that something within his mana core was changing, and all of the changes were caused due to Solaris.
His soulbond was still devouring and annexing the fiery aura that was unable to cope with the combined pressure of the fully unleashed Celestia aura Solaris was intertwined with.
Furthermore, his stigma was further enhancing everything, strengthening the merging between the aura and Solaris' flames.
This slowly changed the color of the flames into a whitish-silver tone that was further deepened owing to the moonlight transmutation.
The more the fiery aura was annexed by Solaris, the more changes were occurring inside the mana core.
A faint thread was loosening from the mana core, slowly approaching the core of Solaris' body, trying to find a way to fuse with the black origin flame.
In the end, this was the first time his mana core showed signs of trying to fuse with Solaris.