JUST IN CASE you don't know how many are going to be MINTED!!!!
$2 packs are a great IDEA and our last chance to acquire new players!! we shouldn't worry about too much on how many being MINTED because it has been NOTED:

Presale & General Sale
For the Conclave Arcana set, there will be 5M Booster packs, 1M Alchemist packs, and 500k Legendary packs that will be minted and available for sale in total. As noted above, there is planned to be no limit to the number of Starter packs that will be available for sale.

10% of each type of pack (500k Booster, 100k Alchemist, and 50k Legendary) will be made available in the presale phase, which will begin roughly 30 days before the set is released. Packs purchased during the presale phase will not be able to be opened until the general sale begins and the Conclave Arcana set is released. Any packs allocated to the presale phase that are not sold will be burned when the presale phase ends. Please note that Starter packs are not planned to be available in the presale phase.