another newb question (creating a spell)

I'd like to create a completely new spell/skill...I need a walkthrough. I've read through quite a few building docs, but smaug seems to have less docs than it should (maybe it's just me). I would really, really appreciate any help - if you've ever done this, just tell me how you did it.

I'd prefer not to mess with the source, but I will if necessary.

There is a spell type "spell_smaug" I think it is, which allows all sorts of stat modifications. Look for examples of that in existing area files.

If that doesn't help, post an example of the sort of thing you are trying to achieve.