These Row 0 cards are parallel to regular base set. These cards are serial numbered and get more plentiful as they are numbered higher in the set. Serial numbering is as follows: Cards numbered from 1 through 30 are serial numbered to 250, cards numbered from 31 through 60 are serial numbered to 500, cards numbered from 61 through 90 are serial numbered to 1000 and cards numbered 91 through 120 are serial numbered to 2000.
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