Twilight Sparkle. Alicorn princess, scholar, explorer (kinda). While she may not move the sun or the moon, she's powerful in her own right. However, she hasn't quite mastered inter-dimensional travel.

Mindcrack. Friends; family even. Masters of their world, these Crafters can do almost anything. While exceptional individually (mostly), a group of them can overcome anything they encounter. Now, if only they can guide a poor, lost alicorn home.

Disclaimers:
I have nothing to do with the Mindcrack server.
I have nothing to do with MLP.
I own nothing.
I have no regrets.