Has it already been mentioned that Peridot hates this? Just in case, let it be said again: Peridot really hates this. The duplicate's tone is so dissonant, so out of place here. It makes the hair on the back of her neck stand on end, evokes vivid memories of a dozen conversations between herself and the REAL Amethyst during which she might have said those words. It's just a rude reminder that Amethyst is likely somewhere nearby and in very real danger, and this fight is just further delaying her rescue.

Sparks flying from between her fangs are the only warning the duplicate has before Peridot blasts it with all of her fire power, gouts of flame pouring from her open jaws.