I love collections and I have flipped thru out this season, but most of what I just did was just play the game and collect cards and sell them. Did mini seasons and put in all my jolt/color storm cards I needed to get all star vouchers for. Along the way tons of rewards that gave me enough for all the collections. I left out Pipeline Past. Then I beat the two spring break showdowns. My method is always pinch run fastest dudes and steal second. Never risk a double play. It worked and I got 99 Teddy Ballgame!
I hope this encourages anyone who is wanting to try and get him. I’m an ok player, right around .500 online with lots of offline play. If I can do it you can too! Good luck!