Quote Originally Posted by Trenloe View Post
Thanks for the examples.

I'll investigate implementing the -1 to the Caster Level or Spell Level - with a resulting minimum of 0 dice - as mentioned previously, implementing actual negative dice is a significant amount of work.
Maybe you could do it the way I mocked up above with the caveat that the minimum dice are 0? I think that would work for everyone (if it's not too much additional hassle)