For starters, as I mentioned above, the 57 cards in the maindeck that arent Scavenging Ooze are important in most matchups, but there are some opposing decks where some of your interaction or payoff cards just arent getting the job done
Usually, one such reason is the sets showcase frame, which is an alternate themed style thats emblematic of the set
Whenever you cast your first noncreature spell each turn, draw a card
With the help of the back of the card, you can easily recognize a scam and not be deceived
This often makes the card unique
Each plane will get rated in three categories, receiving a score between 1-5 for each: Fun (does this make the game more fun to play?), Impact (how big of an immediate effect will going to this plane have) and Chaos (how does the chaos effect affect the game)