In my last post I put my basic formtions I use from 12 to 20 manner. Go back and look at it here.
https://hive.blog/splinterlands/@bjt34/splinterlands-battle-formations
Below is the rest of my list from 21 to 31+. Like I said in the previous post this won't work for people buying new cards, but as a starting point its a combination of what has worked for me to win a few battles. As I lost battles with a formation I replaced it in my table with the team that beat me... It's a good starting point for me at least and hopefully others might get something out of it.
Thanks again to @freeztag for the divider image