I like to run story based games too. The point is I like to incorporate the setting rules into the story so that it makes sense in the world. A king would have access to a caster or minor magic item that detects poison and or casts purify food and drink, so I wouldn't try and kill him that way. Maybe the king has a deadly nut allergy and that is what is used to kill him, the spells don't detect nuts or remove them. Ground up glass is another way to go. But in a world with raise dead and true resurrection magic items that trap the soul or kidnapping him and feeding his body to a barghest are two great ways that he can not be brought back.
I just like to think about how magic changes the world the players live in and use that in my stories, Eberron does a good job of this as a setting. Villages don't have to worry about not having clean water for example if they have one cleric of first level at the temple he can make pure clean drinking water all day long, the food that goes bad sitting in the grainery no problem the cleric can fix that.
I just like to think about how magic changes the world the players live in and use that in my stories, Eberron does a good job of this as a setting. Villages don't have to worry about not having clean water for example if they have one cleric of first level at the temple he can make pure clean drinking water all day long, the food that goes bad sitting in the grainery no problem the cleric can fix that.