What is the master collection?

SDS

my first year playing DD.

SDS

Legends and flashbacks. An endgame reward for collecting those series'.
Last year it was Honus Wagner. A ridiculous card for the legendary SS.
The card itself is the most expensive baseball card on earth.. like 3mill or something like that

SDS

Last year there was a collection that took most of the different types of cards (All-star, veteran, SS, etc), and made them all have a collection towards 99 Honus Wagner.

It might not be Wagner this year, but it will be some 99 player, and with the new additions of Prime or Awards cards, those will probably be in it to