The pre-sale in the store is the only way to get the presale exclusive airdrop, Doctor Blight.

People buying packs on the secondary market are only getting the packs themselves; they don't count for any airdrops at all.

As for the other 13 airdrops, all the pre-sale packs and the first one million regular packs will all get 13 airdrops, then the next million will get 12 airdrops, and the next million will get 11 airdrops, and so on. Packs on the secondary market will not receive ANY of those airdrops.