This question has probably been asked tons of times so if you have a link to another question like this please send it. I started playing Yu gi oh the first week it realeased in the Netherlands and quit playing when Mariks deck came out. I've been trying to search how to get into the game again but it has become so complicated and I read something about an old school style of playing. Will I be able to understand it quickly or is it better to just buy some old decks and play with some friends?

Edit: I want to know what kind of decks are good to start with to not be dominated by others but still able to understand the basics. I read something about needing 3 of the same decks to have a full deck but no idea what that means