I don't mind if Steph keeps the "Spoiler" code-name, but I've never really loved "Orphan" for Cassandra.

Since the "Batgirl" name still belongs to Barbara Gordon, what other names could Cass use in place of "Orphan"?

Two possibilities could be "Dawn Bat" or "Brown Bat".

Other suggestions (besides going back to "Batgirl") people want to throw out there?