It turns out that if you place the Grail in the Conflux, you still won't know absolutely all the spells, even if you have expert Wisdom. Conclusion: Spells that don't fit in the book displace old ones, which might have been more necessary and important.:confused:
Yes, and as for the topic — I choose battle mages. Any warrior, even the most first-class one, needs spells just to be able to dispel magic, heal, or buff their army, and therefore, you need to take some kind of magic. Otherwise, you might not hold out against a mage if you're poor with spells.