Terrible Sue requires all characters to based on the concept of a Mary Sue or Gary Stu. I chose this particular rule because of how deadly a Sue or Stu can be to some people, and how others base their lives around such a character. Perhaps, after forced to be one, you will realize just how terrible it can be.

Perhaps this guide will be useful in creating one?

I am not affiliated with this guide, nor the author in any way, so please do not suggest such foolishness.