Crystals are the most versatile of the three, buying packs, battle passes, or even being traded in for more coins
Twelve loyalty is so much, even with all your planeswalkers proliferating, and picking them off to take the extra turns weakens your board since your superfriends deck ostensibly wants those extra turns to activate its planeswalkers again
One of the best ways to prove a card is the first one you drew is to keep it separate from your hand , either put your hand down or keep the card near your library
By proliferating lots, you can make the tokens even beginner, letting you benefit from even small incubating cards
Honorable Mention #2 (#12 Overall) - Armored Scrapgorger Check out this fun 0/3
Its the ideal card to sacrifice or discard, but the surveil effect means its also just fine to cast when you need to commit to the board