Baphomet Altar, a relatively rare special building in the wild.
If you haven't encountered it yourself, no one would even know such a thing exists, and those who do know are already dead.
Because the essence of the Baphomet Altar is an altar for reverse sacrifice. By offering sacrifices to the Baphomet Altar, you can receive double the reward in troops and strength of what you sacrificed.
No matter what you sacrifice, the Baphomet Altar will immediately double it and return it to you.
However, this doubling return has a time limit.
Once this time limit is over, sorry, the doubled return, along with what you initially sacrificed, including your life, will all be taken away.
Thus, for many years, not many people have known about the Baphomet Altar.
No one has spread this information.
The reason is here: those who knew are already dead.
It can be said that this is a desperate last resort for revenge.
