Death be not proud.
‘I told Sir Ursus not to take the amulet, to leave it be in it’s resting place. But he would not listen. We now trek to his place of hiding to remove the amulet and return it, and to destroy that which Ursus has become. ’
- Arch-Danath Maccalas of the Dark Step Tribe
"Don’t worry, I’ve fought necromancers before! Wait, what the…"
Undead are, simply put, among the most horrific things one can think of. Can you imagine anything more frightening than a being which is dead and yet still walks? Can you imagine the horror of being faced by the hollow shell of being, a hollow shell which must feed?
"Summon the Legions! We shall offer battle within Bleak Vale! This time, OUR cause shall triumph!"
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...