My favorite scene has to be at the very end of chapter 77...
Spoiler for chapter 77:
...when the Ghosts arrive in Rabona just in the nick of time to save Clarice + Miata + Galatea from Agatha.
Clare: A town that i have links to...will not be destroyed this easily
Agatha: You...who are you?
(cut to badass shot of all the Ghosts covered in their cloaks except for Clare)
Clare: You do not need to know...because you will die here.
man that scene gave me goosebumps. Even though its a somewhat cliched exchange in shonen manga there was something about the delivery that really hit home that Clare meant business...or maybe it was just the way I imagined it in my head haha.