A ponified version of the anime "Rokka No Yuusha".
According to legend, when beasts awaken from Tartarus and turn Equestria into a nightmare, six heroes will be chosen to save their great land. These heroes are known as the "Braves of the Six Elements". Among those chosen is Rainbow Dash, a pegasus who proclaims herself "The Strongest Mare in the World". However, when the Elements finally meet, there are seven of them, rather than six.
Note: Although this is based on the anime "Rokka no Yuusha", you don't necessarily have to have watched the anime in order to understand the story. However, I highly recommend you give it a look if you're into adventure/fantasy.
Interesting.
I recently watched Rokka no Yuusha, I'l see how this turns out.
Eh, it's good, but then it says Rarity has a horn and wings. And through out the rest of the story I am like "what?". A unexplained goddess of the Crystal Empire is hardly a reason without context.
Of course, I am waiting for you to explain this to me so have a follow, I will wait on the like. Till next chapter, my kind fellow!
This twist though... Rainbow Dash is in a lot of danger!
This is a really fun read! I can't wait to see what happens next, especially as I'm not familiar at all with the anime.