Everything that tells you it has all the truth and everything else has all the falsehood is a scam. Everything that requires you to found your beliefs on your emotions toward and opinons of certain aspects of society is far from perfect. If you want to learn about what you're probably thinking of when you say "dark magick," read this chapter:
http://www.sacred-texts.com/eso/sta/sta24.htm
If you want to be able to perform magic, go to the library here and download the Occult Seed folder. Work through it, and remember that the only thing that makes your practices "dark" or "evil" is what you do with them. You could do edgy Gothic rituals and heal people if you really wanted to. What makes it "dark" is serving yourself at the cost of harming others. I disagree with that path and don't expect you to get very far with it, but it's your choice. Also, read the rules before posting and take your bullshit LARPer questions to the questions thread. I recommend you read several books before asking anything else.