Alright, I'm here to clear some stuff off that people are not getting.
First, I'm not quite understanding how SlenderMANE is out of character, nor did I know he actually was a character. What I'm trying to do, is write him as a father, not some horrible elderrich abomination lurking in a forest. Second, the reason him and Discord are all buddy, buddy, is because Discord is Celestia's brother. Deal with it.
And Sun Spot, yes he may look like his father but he's just to nice for his own good. So excuse me for writing an OC wrong. I'll always take your suggestion first and have them just go on a bloody killing spree. How would that be?
And, if you all are forgetting, or some of you, this is a fanfiction. A made up story, therefore, the characters are just how I wrote them.