Here are the card counts and likelihood of getting each type of card: 4 Rares and 3 mythic rares with the serialized double rainbow Ravnica City treatment There are 250 copies of each serialized rare and mythic rare card for a total of 1,750 total serialized cards in Collector Boosters
Then, Scurry Oak creates a Squirrel token, bringing us back to a creature entering the battlefield
Wayfinder is not just a card that replaces itself like the others but also a card that can offer some relevant card quality and options
These cards usually play with established Magic rules in a fun way that is a real treat for ardent fans and even bring back old mechanics that will likely never get printed on legal cards again
The two most played removal spells by a large margin were Lightning Bolt and Path to Exile the former of which could be played early but could only kill small creatures, while the latter could deal with any creature but was punishing to play in the early turns of the game
The difference between the deck codes and the booster pack codes is that you know the exact cards you are getting, so if you need that Great Henge or Alrund Epiphany, buy the appropriate deck and go