Because these puzzles were separate for each card, they were labeled as "exercises" as a prelude to the puzzles on the website, which required the use of cards from Eevee Heroes
You don't need to attack with Cait Sith, Fortune Teller to gain the impulse card and free scry, but depending on the mana value of that top card, you may want to attack
If you have a lot of creatures with one of those keywords, you can prioritize spells that care about that keyword
Duchess, Wayward Tavernkeep I might have Duchess, Wayward Tavernkeep a little high, but getting to draw a card for whenever you deal combat damage to a player seems like a good enough deal to speculate on
Early Game While the early game is nothing compared to something like a mono-white weenie deck, there are powerful permanents and spells to be cast in the first few turns
On some cards, such as the Werewolves, you could also transform back