Why did you attack with three dogs? And what if I guess this melody from a single note? Zверобой defeated skeletons with five fairies; the attack power of a dog is probably only slightly less – it has three heads after all :)
Do you know how much of a hassle it was to defeat skeletons with a movement range of 6 using dogs with a movement range of 7? We don't want to harm our own health, do we? :)