Principles
Monsters
created by people's actions, even if they were first something else
humans poisoned the environment due to greed
human greed
human anger, from killing someone and their ghost/spirit/essence possesses or destroys now
humans being ignorant of where they set up a town, trampling local animals/spirits
delusion/confusion/ignorance,
attachment/desire/greed,
and aversion/fear/anger/hostility
Beasts, even magical ones, ultimately are not hostile except when provoked (by the above).
Shades from Eragon.
Djinn (witcher, Yennifer)
From Fae (portal opening and humans mucking about)
Elemental (humans trying to control magic forces)
Witch or Wizard made them
Iron for Fae
Silver for were-creatures and undead/vampires
Bronze for spirits
Nobility
Guard
need the right name for this