The ninth stage of the Kanigem Tournaments

For example... <many letters>

Man, how do they even put up with you here? You're a real pain. :smile08:
And literally so.

However, the wording "unspecified is prohibited" is really poorly chosen. If you're going to prohibit something, specify the exact methods, otherwise something might come up during the walkthrough, and it will be unclear whether it's allowed or not.
Off the top of my head, I can also mention the possibility of learning the Necromancer's skills in various academies. No one is going to hide the available options, but you might not remember everything right away.