C2294 Help the Dragon Change Its Bloodline

He condensed it and turned it into a black ball. It looked like there were clouds floating in it. Tsing Yi grabbed the black ball and flew to the dragon's head. She gently patted it and the ball was dark. She stuffed the ball into the dragon's head, but nothing was left on the dragon's head.

The egg-sized black ball disappeared in Tsing Yi's hand, and the dragon calmed down