If you Cloris is max affection you shouldn't have any problems with 5stmina map. Put her out first the first armor should die before even getting Katie. Then use prince.. just like in the vid
i get around 60% health down from it only... so the wave after (the 2 on the top) 1 hero 1 katie kills katie, since she has like 50 hp left at that point and i got 2 unit points and my healer cost 15-20 depends on which one i want to place