Finally have her on Skill Level 5, at least a level up was guarented when i finished the map. The 3 times i would have lost i just retreated with the 25k+ Gold from spinning around. :S
But starting all of them on the upper camp worked to erasse the 2 nests there and extend the time until the flood gates opened. Had a helper with Toad Lily just tanking the burst with just 124 Damage per Fly. From the last try i also learned that the boss has a normal single target attack and not just his aoe.
My RNG was confused.