Wow, Oda's really gonna make Nami earn Zeus back. She'll have to turn back against Linlin eventually. For the time being, Kid, and later Law, will hold her off.
But this chapter makes Nami's declaration last chapter comical in hindsight. Didn't see the point in that at all, even if Nami beats Ulti later, it just won't have that "in the moment" effect.