In my next campaign I am going to curate various PC options at the start of play to reflect a somewhat grounded fantasy world. The actual campaign is a sandbox in the wild full of wonder and magic and horror, so that stuff will be discoverable during play.
By far the biggest list of things to deal with is spells, so i thought I would crowd source a little, if you would be so inclined.
What PHB spells do you think would fall into different "rarity" categories (common, uncommon, rare, very rare, unique). Note that it isn't really about power level so much as what would be found in a functioning civil society. That is, fireball might be rare (in the hands of the military-arcano complex only) not because of its power, but because it would be controlled. Stone to Flesh might by very rare simply because it has been lost to time, while Raise Dead and similar spells might have been actively suppressed.
Note also that most of the reasoning is just background flavor. The characters will be exploring the Land Beyond the Wall and discovering ancient spellbooks and magics written on the walls of tombs, etc.
Thanks!
There are lots of proposals to limit spellcasting, and IMO this is one of the better ones. I don't like the "make a roll every level to see if you get that good spell, and if you fail you suck" that I saw in 2e.
A spell like
fireball is very common, and not just because it's good. It's used by lots of wizards across numerous nations and cultures. It's the kind of spell that pretty much every 5th or 6th-level wizard has because even if they didn't buy a scroll they can research during downtime. In game terms (3e terms, specifically) this is one of the two "free" spells you get per level.
By contrast, a spell like
Leomund's Secret Chest is kind of rare. This is the kind of spell you're delighted to find in scroll form, or from the corpse of a rival mage. I'm guessing the houserule is that spell cannot be "freely" researched and must be acquired somehow.
This might also tweak the use of a few spells or items. The Ring of Counterspelling would be more useful (it can only counter one spell, and limiting the variety of spells coming at you makes it more powerful) and would make Prismatic Wall/Sphere weaker (enemies would be more likely to have the spells required to take it down).
I'm using 3e as a base, because in 4e a lot of old spells did not reappear, and I have very little experience with 5e spellcasting.
I'm not picturing legal restrictions on purchasing
fireball. Pretty much every evil wizard is going to have that spell anyway, so if the intention is to keep PCs away from the spell, it will fail. Beat one mage, take one spellbook, and now you've got that spell that the legal authorities don't like. Just don't cast it where it can catch civilians and the law won't even
know you have that spell. (No wizard would ever let the law confiscate or examine their spellbook.)