Then you got to convert that monster into a DWScriptedMonster:
Make sure it behaves well with the new controller and parent class
Adjust attributes to RPG characters (increase health and strength)
Add ME specific attributes: Resistances, Type {Feral, Sentient, Undead, etc...}, enable customizable attacks {so mappers can apply customized attacks}, optional: player monster customization {like alt fire}.
Enable elemental attacks (fireballs should do fire damage)
Then you have a couple misc things to adjust, but there's no need to go into details here.
The difference between successful people from others is
not in the lack of strength,
not in the lack of knowledge,
but rather in the lack of will. FFE466