"For every 10 Rebellion booster packs purchased during the presale, including bonus packs available with bulk purchases, players will receive one Grimbardun Smith Neutral Rare card! Each Grimbardun Smith card received will have a 4% chance of being a Gold Foil version of the card, and players will be guaranteed to receive at least one Gold Foil version of the card for every 250 Rebellion booster packs purchased during the presale.
On top of that, every single Rebellion booster pack purchased during the presale will have a 1% chance of receiving a Mantaroth Neutral Legendary card! Players will be guaranteed to receive at least one Mantaroth card for each 100 Rebellion booster packs purchased and at least one Gold Foil Mantaroth card for each 2,500 Rebellion booster packs purchased during the presale. Each Mantaroth card will also have a 4% chance of being a Gold Foil version of the card."
do we have to buy them in one single transaktion? or can in buy 9 Packs, and 1 the other day?