"Now I can say that number is very small variety for a TCG. Do you think more different cards (not copies of the same card different cards) would be printed than that?"
Well, I think that's just it: they can get away with only having 232 (though some cards say 250, such as Elixir of Tenacity and Viledriver), because one card can have several different versions. What I'd like to know is if there is a fixed number of versions for each card, or if the stats/abilities for the card are randomly determined (meaning near-infinite versions). If there is only 5 different versions of the same card, a dedicated collector can obtain them all. But if each card is truly unique when it comes to stats and abilities, collectors would probably go mad trying to obtain each one.
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