No matter which one you choose, they all feature pre-balanced decks of 60 cards using two Ink types
When you pick up an early unfair card and begin building around it, ask yourself what kind of overall deck your card thrives in, and keep an eye out for other unfair cards that also work well in that space, even if the two cards aren't direct analogs in the way Counterspell and Mana Leak are
This is simply too expensive, requires you to actually banish your own characters, not simply challenge with them, and has no real effect on the board
If a saga somehow loses all its abilities, then you have to sacrifice it immediately
This is great for even more blinking support, as cards like Ghostly Flicker or Ephemerate
If you exile your entire library without exiling a legendary nonland card with lesser mana value, you will randomize the exiled cards and they again become your library, ending the effect