Suggestion: Some games, you can just breeze through it without worrying about positioning. But the majority of games, 95% of them, you end up losing because you didn't know where to place your pieces. If this is a "chess" type game, then rather than giving you 3 chances to look at your opponent, you should either
A. Let us always view the opponent's board. This would be ideal, but it could cause the game to be much, much easier.
B. Add an item in the shop that lets you view your opponent's board at all times at level 2 or 3. Combine this idea with C. for the best effect of this idea.
C. Have little arrows showing how many enemies are in each lane, even if it doesn't tell you which ones that are there in the early game.
D. Make it so you can view your opponent's board twice, but any subsequent views cost 3 coins.
Additionally, I think there should be four more additions as well:
1. Make the first reroll of your shop each time it's open free.
2. Add a health regen item to the shop. Just make it spawn at level 2. It costs 3 coins, is random in the shop like everything else, and regains 1 heart. The upgraded version the regains 2 hearts would be at level 4.
3. Level 1 should have one more turn before moving to level 2, same with level 2 before turning to level 3.
4. Add a quick restart button that just goes back to where you click on the witch to throw the first bone in the cauldron.