Mean & Green and Formidable! are permanent, have been for awhile now.
There were (are?) also basically exact dupes of both made by Orly. Bad Fairy would be the only one no one can currently buy. It would be my luck if that was the one product they don't repromote!
I spent I don't know how much time trying to find one, never could. Then bought about 4 different polishes by different brands that looked similar in the bottle, but ultimately weren't similar at all.
As someone trying to cut way back on makeup purchases, I don't mind it. As a Disney collector I do, especially since the Sephora Disney line has concluded.