The battles are insane. You lose as much health as you regain. You can only add health in a battle. You can't get health & attack in the same turn.
These aren't games, you literally just press 1 button for about 20 minutes. There's barely ANY interaction. Why the hell these get badges are beyond me.
If you can't get past it, you can set "test speed" (in settings -> gameplay settings) to your liking.