“ Pick up a pathology/microbiology book, and add the diseases/syndroms to your game. Your players will freak out.
Coughed at? Diphteria. or tuberculosis?
Drunk from a muddy stream? Or just walked through? Well, let us introduce you to schistosomiasis...
Hit by a stream of energy? Too moch mana is ust like too much radioactivity - perhaps all mages could develop cancer early if too powerful...”
“ Magic is impossible except for a handful of days in the year, when those with the knowledge become hugely powerful.”
“ Often valuables is counted in coins, jewelry and magic items. Surprise your players by offering them cheese, wine, cloth and art as rewards and payment.”