DM: They lead you to a nearby pond.
Dark Red Apples (Discord): For the answer you seek…
Light Red Apples (Discord): …go ahead! Take a peek!
Applejack: Ah look into the water.
DM: It ripples, and… uh…
Discord GM: No worries, I've got this one. You see a vision of Discord's plan, and it's quite simple, really. While you're separated, he'll trick you into accepting your own unique, secret, and insufferable curse. Then you'll be reunited. Your new "quirks" will drive a wedge between you. With your friendship weakened… the Elements will become powerless. On the off chance that you DO recover and set off to turn Discord back to stone… Ponyville itself will by then be Discord's capital, and its warped space will keep you away. The rest is just improv, really. Letting the fine details emerge as we go.
Applejack: And now Ah know how to beat you.
Discord GM: Yes, indeed. All of that sweet, sweet meta-knowledge is yours. All according to plan.
Applejack: You… what?!
Discord GM: HEH HEH HEH! A HA HA HA HAAAA! Don't say I didn't warn you, Applejack!!