@Background Pony #880F
She could also use magic to vaporize the zebra filly, but instead she needs to use stealth and espionage tactics to try to find out why her student decided to befriend a zebra and how to indirectly undo that friendship.
If you ask me, Zizzie and Luster is a friend_ship made in heaven, but we are talking about what the hell Prince Twiggies is up to here.
They never managed to unstick Twilight from that slide. You can visit her in her castle, head and hooves still pointed to the sky as the fat butt that was her undoing stays dutifully affixed to her throne. Somehow she remains just as regal as ever.