"Anyway, generally speaking, if you encounter Outland Demonic Beings, do not hesitate for a second to use the rules to contend with them. If you can easily suppress them, then slay them.
If, after contending for a while, you find that your rule power is being devoured, then there is still hope of winning.
If your rule power goes out and is like a clay ox entering the sea, then run as far away as you can."
Chapter 473