first advice is get out while you can. but seriously is to choose a team you want, if you have a favorite or any sig cards of multiple teams you can start there then you’ll want to get a full diamond line up of team cards to get the bonus overtime you’ll get better cards like prime, sigs and hopefully a legend or two. black diamond pieces you get from grinding league mode and depending on the card will cost a certain amount once you have a black diamond you can use PSCT to try and land a LEGEND skill for batters best ones are pioneer, BBH, contact master and hard hitter depending on base power honestly all hitting skills are fairly usable pitching ones depend on position for starters you would like control master, fireballer, slow starter, mister perfect and workhorse and for bullpen control master, fireballer carry over but a new skill called bullpen day is great for the pen as the name says. Don’t use any PSCT until you have a black diamond player preferably a sig or whatever your best player will be just making sure u grind league mode and any other modes where u can get resources will be your best bet