YU-GI-OH Help Info about side deck?

Question

Can someone explain wat is side deck and how does it work

Answer 1

A side deck is really only important if your playing in a tournament.

Most tournaments wont let you change your deck at all for the whole tournament.

thats where a side deck comes in, it has to have 15 cards, and you can sawp cards from you deck and side deck after a duel.

Usually tournaments play matches, you need to win 2 duels against one opponent to win, so after one duel you can chenge up some cards from your main deck with you side deck.

After you switch, you deck and side deck have to have the same amount of cards they started with, meaning your side deck can't go under 15 cards at any point.

Keep in mind you switch after a duel, not during one.

A side deck usually should have some spare cards that can be used to counter certain deck types, like if you dueling a beatdown deck, u could take 3 non-agression areas from the side and switch them for 3 other cards u dont need, or if your dueling a lightsworn you can switch for some light-imprisoning mirrors.