>>44981Problem is having each party member only know one spell would be boring, if you don't massively balance it out with individual spell potency. I quite like casting in dungeon crawl stone soup, which has misfires at low intelligence, but also allows you to cast at zero mana with an active backfire chance.
>>45017Personally i think ubiquitous magical artifacts are a severely underutilized woldbuilding mechanic. They're usually asides to diversify wizards, give profane classes more to do and flesh out the lore. Even magitek in final fantasy, which should be a pretty big deal on its own, always comes with masses of human spellcasters. Maybe the writers just don't know how to make the party doing fictional engineering fun, apparently guilds and crafts are as intricate as it gets.
>>45018>vintage and wooden weapons like old rifles buffed as you can get better spells on them over let's say a modern rifle made with polymers and such.While your overall idea seems promising, this part doesn't really seem well articulated. Wood in particular already is a pretty durable, lightweight material and the gap to modern, special-purpose polymers isn't that great. IIRC wooden stocks remain popular for recreational rifles. The next best thing would be to make up something about nuclear weapon tests or a man-made disaster contaminating any resources extracted past a certain year, but i don't feel like this is what you want.