Batman, Tatsu Yamashiro and others in “Unfinished Business”

You're not doing anything until you're suited up and armed.

Tatsu Yamashiro

[smiles mischievously] Okay, then. [Tatsu walks into the costume room, grabs a katana and an eye mask from the wall, and steps out of the room, wearing the mask and the katana strapped to her back] Suited up and armed.

A sword and a mask, that's all.

I can fight in this. [demonstrates her sword moves] See? There's one more thing. You have a code name, and I want one too. Call me Katana, when we're in the field.