C774 Lethargy
Ying Wu Hou only needed to keep increasing the temperature. As long as the temperature reached a certain point, it would be enough.
Actually, what Ying Wu Hou was doing now, was equivalent to putting a lit candle inside a balloon. As the candle continued to burn, the temperature of the balloon would continue to rise, and the balloon would eventually shatter.
As for his own Heaven Shrouding Flag