Hello!
By popular requirements, we have facilitated the passage of some missions that impeded you from moving further. However, they still remained difficult, they are not impassable. But this missions require maximum concentration, tactics, and tracking the battlefield.
In addition, we left a couple of complex missions untouched, as they are not mandatory. But we now evaluate them for 4 skulls.
In conclusion, I would like to give a couple of tips for passing:
1. Play more aggressively! Try to capture crystals as early as possible, and don't get carried away by towers.
2. Do not be afraid of bosses! These are the usual levels, but with their own feature, guessing which you can easily defeat them!
3. Do not be afraid to destroy your buildings!
4. Monitor the health of buildings. This can be done by hovering over them.