Just wanted to chime in here since I was also extremely frustrated by this level. Some pointers:
- First and foremost: You only need to get her down to like ~45. Then you will be able to use some dumb amulet and finish the level finally
- Also note that around health 75 another hero is called to her side that goes dormant on defeat
- Be very hesitant in using the hero power since you don’t want to go into Fatigue mode (this is applicable only if you went for the Pirate girl hero I think), although sometimes it truly is necessary when there is a big gang of enemy minions up there
- You just need to get lucky with the spells sometimes when you do use the hero power
- Keep the area of effect cards for the evil twin guys that need to be killed simultaneously
- Use all the healing abilities, especially the life drain can be very useful with high attack. Also used the +4 healing on attack. I think the one for the other fella doesn’t matter too much what power you use.