There's very good reason for them to keep that private: the demand for the card is extremely high among wealthy collectors, and it could represent either a life-changing amount of money, or a massive liability and risk of theft
If you fail to find those two, youre at the mercy of luck and can falter against other players who have more resources in hand
While this doesn't introduce many new creatures to the strategy, it provides the ability to ramp
Choosing Blue Core Standard allows you to add more cards per deck without driving up your price
The deck has endless options to become even stronger, often using powerhouse cards like Steel Overseer, Arcbound Ravager and Unwinding Clock, but that's not even the worst problem in some players' eyes
CGC Cards Grades Gamma Playtest Mox Pearl from Magic: The Gathering Posted on 9/7/2023 Before trading card games are mass-produced for the general public, TCG developers usually test their games cards (including abilities, mana costs, etc.) and overall mechanics