Board Thread:Theories and Speculation/@comment-1512913-20161119171442/@comment-1512913-20161129175936

Point is, she has Lava: Fire + Earth and Boil: Fire + Water. So we have 3 natures here: Fire, Earth, Water. Fire combines with both Earth and Water, that's the common nature in both of her kekkei genkai, Lava and Boil, but Earth with Water do not combine, she can't use Wood. The theory is, if she could also combine Earth with Water, meaning she would be able to use any dual combinations of the three natures simultaneously, the result would be a Kekkei Tota.