Evil Enchantress

Apple Bloom was at the entrance to the Everfree Forest, a short way behind Zecora. The young filly steeled her nerve and sprinted in. She was astounded at the flora; pretty blue flowers were everywhere. The three older ponies had made the Forest sound like a horrible place, but in actuality wasn't so bad. Apple Bloom made a mental note to come back later.
Suddenly, a loud noise caused both ponies to turn around. Apple Bloom gasped with fear.
"APPLE BLOOM! You get back here right now!" Applejack, as well as the other five ponies who were hiding at Sugarcube Corner, were standing in the blue flowers, with a look on their face expressing that they were both angry and worried. Zecora spoke from beneath her hood.
"Beware! Beware, you pony folk!
Those leaves of blue are not a joke!"
And she disappeared backwards, into thick fog.
"You keep your creepy mumbo-jumbo to yourself, ya hear?" Applejack swept up Apple Bloom onto her hat. Everypony else, including Fluttershy, decided to stand up to Zecora's ramblings.
"Beware!
Beware!"
"Yeah, back at ya, Zecora! You and your lame curse are the ones who better beware!" Rainbow Dash spat the words out, as Zecora totally disappeared.
"And you!" Applejack stared at Apple Bloom. "Why couldn't you just listen to yer big sister? Who knows what kind of nasty curse Zecora could have just put on you?"
"Just like in my song!" Pinkie Pie resumed singing, however it was cut short.
"You guys, there's no such thing as curses!" Twilight shouted.
Rainbow Dash flew through the flowers. "Well, that's interesting to hear coming from Miss Magic Pants herself." She tapped Twilight's horn three times on the final three words.
"My magic, real magic, comes from within. It's a skill you're born with. Curses are artificial, fake magic. It's conjured with potions and incantations; all smoke and mirrors meant to scare. But curses have no real power, they're just an old pony tale." Rainbow Dash wasn't paying attention, and flew off. Fluttershy, Pinkie Pie and Rarity took the hint and followed her back to their respective houses. Only Applejack and Twilight remained in the flower bed.
"Just you wait, Twilight," Applejack whispered, as she trotted off. "You're gonna learn that some pony tales really are true."