Two terms to take into account this format and in the upcoming ones.

hello everyone

you should be familiar about what im going to talk about, reprints and presales; both are things to take into account when you play YGO.

reprints: are an important part of the game for budget players and for smart players. budget players are mostly noobs and kids (face it), and have not so much money to pay for that meta-changing playset, so they will play poor versions of a meta deck, having lesser chances to get success (most of those noobs realize that they wont succes and turn to play anti-meta or burn decks). smart players have the money and can pay for that playset, but they know how konami is, and know that there will be a reprint of that card (TGU can be a good example); so its better wait for the reprint and simply play a deck that doesnt need those cards (when POD was released, i used to play HERO STUN, a deck that didnt need the PODs, due to E-call, Stratos and ROTA).

presales: this the simplest concept and the most useful of all YGO. there are only 3 steps to have success here.
1. go to OCG blogs, or OCG news and look for that new card/deck that is widely used because is very good and useful.
2. go to Dueling Network and make a TCG version of that deck, or add that widely used card to a deck and start testing. in this step, you need to know about TCG meta dekcs and adapt your deck to the TCG playstyle (taking into account priority ruling and TCG exclusives).
3. after you have your deck/card tested. look for a presale on ebay, trollandtoad, TCGmarket, MAWO cards, and so.

the difference between both concepts is the quantity of money. for some presales, you will need a good quantity of money, but the price tag of the card can increase and you will have spent less money than the people that didnt buy through presale.

be aware of some presales, becasuse i saw on ebay a presale of 1 inzektor dragonfly/centipede/hornet for more than 40$, before knowing its rarities (i hope noone bought those presales).

i hope this help you to get important cards at a low price.

greetings