And the kicker is, the spell didn't even really do anything useful.

I mean, it was supposed to be Starswirl's unfinished masterpiece, right? So it stands to reason that it would do something really amazing, or at least, was originally supposed to.

But from what I can tell, all it did was zap Purple Smart to that astral plane where Sunbutt congratulated her and bestowed her with wings and a royal title for "mastering friendship". Or something. Whatever.