C2769 It Is Not Entirely Impossible

Er Dao thought for a moment and said, "Any way to increase one's strength too much in a short period of time will have a huge hidden danger.

"Speaking of which, in a really short period of time, there will be fewer hidden dangers in increasing one's strength.

"Only the illusory battle formation in Body Cultivation Inheritance Palace."

After saying that, Er Dao explained," Master