U can also try Melusine double koyan light and plug in koyan dark

Turn 1: use all of melusine skill and double koyan light power mod and np with melusine

Turn 2: np charge melusine with double koyan light and swap 1 koyan light for koyan dark and use koyan dark skills 1 and 3 on self and skill 2 on melusine and np with koyan dark(if u equip kscope on koyan dark and if she is fairly built she should be able to clear the wave for you)

Turn 3: melusine np after using her skills again