Schiller tilted his head slightly, pursed his lips, and said, "Hmm... there are indeed some additional clues. For example, Madam Das actually belongs to the Medusa clan. She has a son named Etrigan. The relationship between Belial, Madam Das, and Etrigan should be the point of internal breakthrough."
"Now the clues are truly finished." Schiller looked at Batman, and Batman looked at Schiller. After the two glared at each other for several more minutes, Schiller spoke again. "...One last little thing. The version of me under Belial is very difficult to deal with. He specializes in conspiracies, excels at hiding behind the scenes and stirring up trouble, and is also good at long-term planning. But he has weaknesses too. As for what they are, you'll have to find out yourself."
After saying that, Schiller looked at Batman again, and Batman looked back at Schiller. The two continued staring each other down. Schiller frowned and said with some displeasure, "You need to understand that we're the same person. I can't possibly tell an outsider my weaknesses..."
Schiller sighed and said, "Fine, consider it a bonus from this therapy session. The weakness of conspiracy is that he can't step into the spotlight. If you can take out Belial, he can't become king himself. He can only find another ruler. And if you take out that ruler too, he can only find the next one."
"Of course, you could also try finding him a ruler like your helicopter engine. That way, before he can lay out any conspiracy, he first has to persuade his righteous, single-minded superior. He isn't very good at persuasion."
Schiller continued staring at Batman, and Batman continued staring at Schiller. Schiller pressed a hand to his brow and said, "There really isn't anything else. You're going to avenge me.