Stupidly difficult for no reason. Fourth level and I cant get 3 stars because every one of my units gets 1 tapped by either a bandit or an ogre. The quantity of enemies sent out is also stupid. I use an artillery mage strategy and it doesnt even work. The mage is an armor piercing unit and the artillery is AOE, they should be a good combo but when there are units that just take no damage then nothing works.