SetsukoHara said:
Charlotte wasn't that strong in my memory.
Charlotte is still the same. Dead men can't train after all. Bambi just ain't at full power. Judging from what Kubo has so far divulged of her abilities, Giselle's powers work by the opponent coming into contact with her blood and she is able to control them that way. If it is a quincy they need to be dead and become 'corpses' so she can effectively control them. After they're dead, she's able to summon them and remotely activate whatever abilities they've possessed in life. Bambietta curbstomped 2 captains until they conveniently overcame her due to plot. That means she's way above Charlotte (who's merely lieutenant level at best) in terms of power so a fight between the two would be short and quickly over.
But as a zombie it seems she's severely underpowered. Even when speaking, she can only do so in fragments and only aims to please Giselle to get some kinda reward. That means the "zombie" is basically a dead person who's only capable of being subservient to Giselle's whims and fancies and doesn't retain much of their sentience and individuality. So Charlotte could easily deal with a zombified Bambi.
Either that, or Mayuri has done some serious upgrading...