To determine your Prerelease allocation, we look at the two most recent Standard set Prereleases and base your “baseline” allocation on the highest total weekend attendance from among them. Then, we may add an additional “growth” allocation on top depending on total availability of Prerelease Packs.
Any prize Draft Boosters associated with your “baseline” allocation are provided free of charge. Prize Draft Boosters associated with your “growth” allocation must be paid for.