Is it lightbringer ?
>>85013782
lightbringer is a person. aka jaime. the forging of the sworn sword is him becoming jaime again
>>85014376
>>85013782
Has to be. Clearly it self ignites in that shot, gotta be some voodoo hoodoo going on.
>>85013782
https://m.youtube.com/watch?v=O3o2LqFZcGU
Lightbringer is either going to be the dany dragons, longclaw or OPs pic related after John adopts it for himself.
The video is quite out of date and did not get posted in time to see the sword dawnbringer(which is a bloodied sword with a sun motif that john was literally born under) John is a stronger candidate nowadays.