Advanced Safecracking 201
The key generator is seeded with viable combat data, and it can now output keycodes… but to constrain the possible set of generated codes, Ghost says you'll need to provide the generator with some more targeted data. Literally.
Use a Bow to land precision final blows against Vex or Cabal.
"This will bring us down to something like… hmm… 32,000 possible codes? Somewhere around there." —Ghost