Army of darkness:defense may be easy until you reach level 45. In wave 45, there is a lady in the red named Sheila, to defeat her, just chainsaw her into the pit when she passes it. You have to do it at the right moment when she is passing it which is when the skeletons in front are mowed down by my deathcoaster which I highly suggest to maxout for wave 50. For wave 50, try to maxout another of ash's skill (I chose arrow volley but you could probably chose another). Upgrade the necronomicon and arthur, henry,horseman, and the iron smith. Now for the battle, send arthur out when you have 55 bars, he should stall enough to launch the deathcoaster and a henry. Collect the bars and summon the horseman.wiseman, or you can upgrade smithy. Of course, resummon arthur and henry when they die and use the deathcoaster and arrow volley available. Finally, there should be Sheilia left and the king. Shiela should die soon, so the king will be left. Stall as much as possible by summoning arthur or henry or horseman if you don't have a lot of bars and do not let him touch the gate to the book.Use deathcoaster one more time and that shall be the end of him.