How to unlock the prospects and evolution cards

[RobRicks]

I dont want to pay for the prospect cards and I already claimed a beginning biggio evolution card. How do I proceed with evolving him, and how do I get some of the prospect cards? I do not know what grinding I have to do.

[DriveByTrucker17]

Moments for the evolution cards.

Team affinity for gold prospects, and there’s some hidden prospect packs in the 2nd Inning conquest map.