Talk:The Dazzlings/@comment-26423071-20160410100358/@comment-1031724-20160411063623

The Rainbow of Harmony purified Sunset Shimmer just like it did Luna, as neither started out evil, but it was the power of their song that the Rainbooms used to defeat the Dazzlings, a counterspell to them completely unrelated to the Elements of Harmony, which had been given up between EG and RR.

Perhaps it didn't have the power to destroy them, only their pendants. Or it could be because the pendants were what made them supernatural and contained all their siren magic, but without them, the Dazzlings were powerless. If the battle had happened, say, two years after they were banished, they'd most certainly have survived. However, the pendants gave them eternal youth as humans for over a thousand years (seeing as how Starswirl, who banished them, lived during the founding of Equestria), and... well, I already mentioned the No Immortal Inertia below.

Which isn't to say MLP can't make an exception to that rule and have them return for redemption if they want to. If they do return, hopefully they've taken singing lessons, and hopefully the Rainbooms are as willing to give them a second chance as they were for Sunset, seeing as how they'd be powerless now. I'd actually prefer if they did return for redemption, but I can accept their fate if they don't return, though I still get a little sad every time I think of them while listening to "Shine Like Rainbow"

And NO, I do not think they are Starlight Glimmer, Tropical Dream, and Rara possessed by sirens. (Rara would be downright impossible anyway since Applejack knew her as a filly when if she was possessed by Sonata it would have had to happen a thousand years ago)