As a DnD player, what is up with no disease or poisoning? I think it would be interesting to have a mummy disease you or a monster with a stinger or claw poison you and get have the effects you have in other RPG's of poison or disease effects. Along with clerics having Cure Disease spell, Cure Poison, etc to attempt to cure thier party members. And potions as well. I know we have some monsters that hit you with similar effects, but would be fun to have some of the old school monster attacks :)
Even have your character turn green and puke on party members lol :P