So I started a second account a few weeks back it's fun and also challenging. I am doing a Coin Packs Only Players Team.
Any free item in the field pass or even packs from the field pass are either sold off for coins or training then I purchase store packs coins only and been building my team from it. Luck is the biggest part of this teams build. So if anyone wants to just try something different if your bored with the game this is kind of fun and exciting if you get a card your team needs. Surprisingly the silver cards you start with can make some really good coins so don't sell them for training as you gain more in coins. But here is my team so far and I did get some lucky decent pulls from the Star Fantasy Packs and some usable cards from zero chill packs but seems like the Star Packs are the best but pricey.
https://www.mut.gg/23/lineup-builder/d857718e-254f-4046-87c3-a1f22514d945/