It was Red Sky.
However, when it was used to slay Master Bai Yun earlier, the Sword Qi was like a meteor, but now it turned into a long rainbow of Sword Qi.
The power of this strike was more than three times stronger than before.
"Boom."
Red Sky collided with the Vermilion Bird Flame Divine Image, carrying sharp and powerful Sword Qi.
"Sizzle..."
For a moment, they were at a stalemate.
"Why, why has the power of this flying sword suddenly increased?"
The Vermilion Bird's brow furrowed in agitation.
"No."
Soon, she understood the twist in the situation.
"It's not that the power of this flame flying sword has suddenly increased, but this kid previously didn't use his full strength when slaying that Fox Demon."
"Previously, the flying sword only had the power of a Lower Spirit-level, but now, it's clearly Intermediate Spirit-level."
"This..."
The Vermilion Bird was somewhat apprehensive.
An intermediate spiritual artifact is not easy to deal with.
"Break it for me."
