Fluttershy: So I can help find those nasty traps for you?
Rainbow Dash: Yeah, that's what a rogue is really good for.
FS: Oh, that sounds really helpful.
Rarity: And don't forget the sneak attacks, dear.
FS: Goodness, look at that... and it improves every two levels. So, um... what's it do?
Twilight Sparkle: It's basically your character taking advantage of flaws in an enemies awareness to attack their weak spots.
TS: *sigh* It means you stab people in the back with your dagger.
FS: Oh... my...
(Based on events of a Pathfinder campaign in which we played the mane six playing a game of pathfinder... really badly. It's more fun than it sounds, really :3)