l suscribe to the headcanon that the Pie Family were summoned to Canterlot Gardens to restore and/or polish the statues in there, when, unknown to her family, filly Pinkie Pie (just a few weeks after getting her Cutie Mark) tripped with Discord Statue, and she accidentaly ate a small fragment of Discord’s petrified fingernail. The fragment somehow was assimilated inside her body, instead of being naturally discarded, and gave her Phenomenal Cosmic Powaz.
Today we learned that (a) Starlight Glimmer is terrifyingly OP, and (b) even she can’t figure out Pinkie magic.
Eh, so nothing unusual then.
(What’s funny is, Twilight’s been in Starlight’s position in this episode before, but Starlight, the former villain, caused considerably less chaos than Twi did in Lesson Zero!)