This ones hard to prove, but we can compare trophy decks of the same archetype to try and spot a loose relationship between the amount of Blood tokens they produce and their land count
Both PSA and Beckett have been known to attend shows and offer in-person grading
In return, the opponent is granted a basic land, perhaps symbolizing a new beginning or a reluctant retreat
If you have fewer lands than one opponent and less life than another, for example, you'll get both of those bonuses
The back of these cards looks especially dark and can easily be identified as such
Use the characteristics of Spark Double as it enters the battlefield, not of the copied permanent, to determine whether it enters with an additional counter on it