One of the keys to tournament performance in Magic is proper sideboarding. This seems to be a point of failure with many Magic players that want to move up from casual play and compete in tournaments such as Star City Games Open, Grand Prix, TCG Player MaxPoint Series, and even large Friday Night Magic tournaments.
The basic concept is easy: Take out cards that are bad and put in cards that are good. This basic advice relies on three important prerequisites:
- You were able to correctly identify the metagame to determine which decks you would likely face
- You were able to competently build a sideboard that fits with your deck
- You correctly identified which cards to add and remove during sideboarding
Obviously, there is no canonical answer to the first point, but the second and third points should be able to be strategized in a general manner.
How do you approach the sideboarding conundrum? Are there any shortcuts or rules of thumb that have served you well, or resources that you refer to? Do you build sideboards with different goals for the different archetypes you play such as aggro, control, midrange, or tempo?