People familiar with this playing style will be able to counter accordingly
The lot includes cards of different types such as creature, instant, sorcery, enchantment creature, and enchantment, all in regular finish
So in spite of WARs context providing a strong argument for Proliferate needing to be weakened in the format, its cost staying about the same cost suggests that it probably could have been cheaper in Scars of Mirrodin
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Something along the line of a scannable code on cards to verify authenticity would get the job done, but implementing the program would be costly, and it wouldn't help with all the cards that are currently in print (barring some sort of mass-exchange program, which would be even more prohibitively expensive)
Sealed Booster Box Pokemon Chinese Gem Pack Keep track of your collection value over time