"Trixie knows about clever little gadgets." She flicked her tail. "Her whole show was based around them." She paused in consideration, but seeing no enmity on Luna's face pressed on. "What the Great and Powerful Trixie promised—and delivered—was a fusion of earth pony gadgetry and unicorn magic. There was no unicorn who could cast spells quite like her, nor was there an earth pony who could make a device that worked like hers did."