Need help to find a gnome

[m62]

Dear all. As a non-english person, I am trying to find a proverb/phrase/... for situation described below.

Assume person A has said that Z is good and now person B want to say that Z is not good. Is there any simple, short gnome for that so that I can use it as a title for the paragraph? For example, I want to say that in these ways

Keep it or release it: Is Z good?
Z is not good anymore, goodbye
Do we need Z anymore?
...

Thanks for any feedback

[prendrelemick]

Gnome?

[prendrelemick]

Gnome?

[m62]

Yeah the meaning is not suitable here... I removed it :)

[luhsun]

I think you mean the pithy gnomic aphorism..

[mal4mac]

"Fallen from grace"

Or maybe "Fallen from Valhalla" as it's a gnome :)

"Breaking bad"

"Downward spiral"

"Crashed and burned"