AJ: Corsanit, Twi, why're your legs so weak?



TS: Earth pony magic is expressed mainly in physical strength. Unicorn magic is expressed mainly in spell casting. If you want to use the kind of strength you're used to while you're stuck in my body, you'll have to learn to use your horn.



AJ: An' how am I supposed t' do that? I wasn't born a unicorn.



TS: Pony type has no bearing on what instincts you have. Everypony has the same set. It's how Rarity was able to fly with the butterfly wing spell. She was just drawing on her pegasus instincts for it. You have the same spell casting instincts I do, they're just largely unused due to you not having access to the required equipment for most of them before now.



AJ: So, y're sayin' I can learn?



TS: Of course. Think we should tell Apple Bloom?



AJ: Nah. I wanna see if she can figure it out herself. We'll tell her if she asks outright.



TS: Deal.