DISCORD: "I'm back!" [laughs] "Speaking from the shadows is very good, don't get me wrong - I like a good challenge as much as the next draconequus - but being an actual character in the show again just gives me so much more room to work with for these! Wouldn't you agree, Fluttershy?"

APPLEJACK: "You know, Sugarcube, that Dragon Code thing of yours sure did seem to come out of nowhere. How come you never brought it up before?"
SPIKE: "Oh, uh, well... you remember when we watched the Dragon Migration?"
APPLEJACK: "Personal crisis?"
SPIKE: "...kinda."
APPLEJACK: "Decided to join the migration?"
SPIKE: "Yeah."

CHRYSALIS: "Finally! Ugh, that Nightmare Moon was too bland, and Discord jokes around too much. Time for you all to see what a real villain is like!"

APPLEJACK: "Rainbow Dash and those animatronics of those critters have been staring at the matte painting of the gorge for a while now. Do you reckon we should tell them the director got this shot?"
OWLOWISCIOUS: "Whoo."

"Since this episode's selection process demands preexisting characters so the audience are satisfied, three of you have been resurrected from the writing grave. Enjoy your at-max-half-dozen lines before you're returned there!"

PINKIE PIE: "Yeah... probably not my finest hour here. Making copies of yourself to hang out with all your friends at the same time - let's just say it's not nearly as fun as you might think!"

RAINBOW DASH [sighs blissfully]: "The only thing that could have made that moment any better was if I had been able to go into the book and join Daring Do on her adventure!"
DISCORD: "You rang? That can be arranged quite easily, my dear Rainbow Dash."

SWEETIE BELLE: "Wow. You just had to pause on that frame, didn't you? Look at my face! I look like you're creeping me out!"
RARITY: "You? What about me?!? Need I remind you that I ran an obstacle course covered in mud for you, my little sister?"

TRIXIE: "But... I... how did you... wait. Is this pose being used as shipping fuel for a Twilight-Trixie pairing?"
TWILIGHT: "If you like, Trixie. Not my intention, but we have to appeal to the fans that make content sometime, you know. Besides, I thought you liked being a waifu?"

DISCORD: "Oh Twilight, you are a card! Why is it that you're always so glum and serious whenever I'm around, when you had this level of chaos in you? Oh, the things I missed in nearly 1.5 seasons of being in stone!"
TWILIGHT: "Discord... would you like to find out whether the 'Want It, Need It' spell works on draconequi?"