Many Archetypes have their own Field Spells and are so good they alone made their Deck as good as it is
Plus, BECAUSE it's a Scrub Ruler copy-paste, you also have the inconsistent benefit of killing your resources in a manner that doesn't even make sense with the Archetype itself.
Other interesting products are the Starter Kits, where you have two decks designed to battle against each other, and the Challenger Decks, which are meant to be playable at the FNM (Friday Night Magic) leve #11
Usually, about three S cards are included per box, but the wide variety of them makes it hard to pull a specific desired card
An Amethyst/Steel Frozen deck, or a Villain deck, which could result in any combination of Amethyst, Ruby, or Emerald
Foil ones have a small premium, selling for between $70 and $85