You know that Undead status makes it pretty tough to survive Natalia's onslaught? Well given that she now spawn dolls will make it even easier for you to die. And sandstorm will make your party even more vulnerable to fire.
Overall, I recommend dispel immunity. And I would recommend inflicting her with a virus and try to survive her onslaught while also inflicting weaken, tired, and curse.
![](https://s2.save4k.ru/pic/F706C68qW70/mqdefault.jpg)