Thread:OppaiSenpai55/@comment-38696393-20200829165010/@comment-38696393-20200830155401

It is as you say. The Witches are unable to use their Authorities outside the Castle of Dreams. That being said, yes, it's not wise to rule out the possibility of them still being able to produce something similar to that (either straight up Authorities or Echidna recreating them.)

I changed the Trivia point a bit, lemme know if it's any better. Also yeah, Echidna was never explicitly shown using her Authority of Greed.