Your Sideboard

A sideboard is a selection of 15 cards that is set apart from your regular 60 card deck. It is mostly full of utility cards, cards that are only useful uncertain situations. It is not something that you have to have to play at you local game store, though I would recommend it because it will give you the cards you need to counter certain threats. After every game you have the option to move cards from your sideboard to your mainboard. You also want to make sure to sideboard to your current meta. Which means that you want to make your sideboard reflect what the people at you local game store play in your decks. If your opponents play lots of artifacts then you want to run lots of removal that hits artifacts.