Also, I'd be even more thorough as to "how those spells behave" while in a situation where:
1. The Nine Books are destroyed by Vaul's Unmaking
2. Nagash looses wizard levels and must "forget" spells he knows.
I pondered about rolling for his 5 spells (Wizard level 5) to be his "known" spells separately from the other 4 spells he also must know because of his Books (one of those 4 being Ryze, as stated by his own magical item).
As with the former "Choosing your General" conflict we had a while ago, when we had to make our highest Ld Wizard the General of our army, and who also had to choose LoV as his lore, we can apply all rules at once, only ceasing where a general rule conflicts with a specific rule from the Nagash book. This being:
- Nagash is a Lvl 5 Wizard who knows spells from 5 lores.
- Nagash holds an arcane item that "forces" him to know 9 spells (the nine books of Nagash, by the way). There must be 9 always, and you can choose from in between the 5 lores he knows to generate them, providaed that the first spell he knows is always Ryze. Ryze, while being a signature spell, can only be taken once per Wizard, and so, the other 8 spells are generated as normal from his lore pool. This means, you roll 1 by 1 until Nagash has generated 9 total spells, but the first one must always be from the Lore of Undeath and must always be traded for the Signature spell, if I'm interpreting the rules correctly. ( funny, I always roll all dice at once, but here it implies we must do so in an order... is that the correct way to do it then? D: ).
- If Nagash "forgets" a spell via any effect (normally, a Miscast), then he must randomly select from between all his known spells (Ryze included). This can take him to be a Lvl 0 Wizard with ~4 spells he still may know.
- If Nagash's Books are destroyed, then (this is coming from my perspective alone) nothing would happen, since the item has already "used" it's power while generating the extra spells at the beginning of the game, and the text does not specify that "as long as Nagash carries this item, he has X spells..". Should this not be the case, then we would have to roll separately for the extra 4 spells and account them to be from the Books.
- Last, fluff-wise, a Wizard prepares the spells he will carry unto battle, even though he may know all of the spells in that lore, he can only actively prepare and use as many as his wizard level (this is in the BRB). The Nine Books of Nagash should represent the preparations that Nagash took beforehand to bring up to 9 spells into battle, as opposed to how other wizards do their jobs. This would mean that, if the Books are destroyed, then all his (prepared) spells would be lost... which sounds pretty stupid to me, but the fluff kind of supports it.
So, now I'm confused. How should we account Nagash's spells?
5 + (3 + Ryze) Books?
8 + Ryze all into one Arcane Item?
What do you think is more balanced, game-wise?