Old K's doubts

"If it's waste paper, how can it be useful?"Erica Xu asked back.
Noah Zhao was also puzzled by this.
It was clearly written in that talisman book that the last stroke must emit golden light for the talisman to be considered successfully drawn.
However.
He drew dozens of pictures in a row, but not a single one of them had any golden light flashing!
That's why he thought that his level was not up to par and he failed.
But now, I heard Viola Li say that the amulet is actually...