The level can be passed with no sword ( check other topics about restless dead). I think it can be finished even with health under hundred. There is no need every level to be a carnage using the most deadly hero with the most sophisticated weapon and sacrificing all your minions.
I disagree with Ana. I use more often defend , not attack. You can summon soldiers to defend a point near the enemies and summon archers to defend the entrance of the enemy camp.
So basically you learns the operator % in this level, itās basically the same thing like math you divide a unit by unit returns you the remaining units.
Ex. 4 % 2 = 0 or 5 % 2 = 1. The 0 and 1 stands for the reminder.
P.S if your above 5th Grade you shouldāve be able to understand this
There is a funny solution of the level with Naria, lightning stick and Lydia Songās favorite pugicorn pet:
I confess itās a little bit seed dependent and the code can be improved.
I solved this puzzle after passing all the free levels in the mountain, itās hardā¦