So I'm trying to pick up on my DS again. I haven't been playing it lately and I decided to get into the competitive scene of Pokemon battles. Thing is, I never battled competitively so I wonder how do I start? What are the basics I need to know? Instead of posting links to websites.. are there certain things I must remember instead? I usually like to go by tournament standards, so anything banned/overpowered I won't be using them.