Topic on User talk:Jade Shauni
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We do not appear to have that trope documented. Looking at its history over at ATT, "Butterfly of Transformation" appears to have been proposed and launched just a few days after the scrape which created our fork was completed. If you would care to create your own version -- this is important, it must not be a word-for-word copy of the TVT original -- and put it in the trope workshop, I see no reason why it wouldn't get launched quickly.