In regards to the other monster types

Before you start semantifying all the monsters, I strongly recommend figuring out how to differentiate each monster type. I.e. possibly adding a variable MonsterType with the options of Normal, Shadow, Sidhe, Bandit ect. and then render the monsters page depending on that. Additionally, there will be the challenge of dealing with all the different difficulties. I suggest creating a difficulty subobject that holds the monster stats for a particular difficulty. This will enable the option of creating as many difficulties for a single monster as necessary, being flexible enough to accommodate all monsters including post dungeon revamp mobs in a single template.