pokemon 2 player starter set card list TCG: Base 2-Player Set Theme Deck Sealed – TBC Games from your first card draw pokemon 2 player starter set

Mark Rosewater spoke on his podcast once about how its tricky to dial in the balance of a new thing like this specifically the very first Equipment cards, in that instance

Art by Wayne Reynolds #10 Reparations "Sorry I burned down your village

Whenever a creature dealt damage by Madame Vastra this turn dies, create a Clue token and a Food token

Second, its whats known as a shadowless card, meaning its from a first-edition printing that didnt include a drop shadow behind the artwork box

So unless there is some pattern where similar cards appear to be rarer or more common, or the sample size is a lot larger, brute force wont deliver definitive answers (though it is still interesting of course)