While performing a Sherlock-esque asskicking, Twilight lists the strengths of the Mane Six. Unicorn power, mastery of pegasus martial arts, whatever it isPinkie Pie does, unnatural Strength, instant translocation, skill with blade...
Twilight orders Unimpressive to teach Pinkie Pie how to fight bladecasters. At first he thinks she's trying to teach her how to bladecast, leading to the following snark:
“Sure thing,” [Unimpressive] drawled. He turned to Pinkie. “First, you take your unicorn magic—oh wait.” He threw his forelegs into the air. “I guess that’s that. Come back when you’ve grown a horn.”
Unimpressive: But she's loonier than a fruitcake!
Pinkie Pie: There are no loonies in fruitcakes, silly. Only money cakes.
Unimpressive: You see this? I'm not letting her come at me with sharpened steel.
Twilight: I order you as your master and commander.
Unimpressive: And what if I refuse?
Twilight: I'll tell my mom.
Unimpressive: Well played, General.
Unimpressive tells Twilight to drink something after using up her magic. She ends up choking.
Twilight: What kind of potion is that?
Unimpressive: Potion? That's whiskey.
Unimpressive in general, really.
Luna outsnarking Nihilus.
Nihilus: You know what the biggest difference is, between you and I, Luna?