So we actually saw Rarity and Sweetie Belle's parents again here. I thought they were only on the show once.

We were all a little disturbed when she turned the mariachis into Octavia and company. Well whatever that was I guess it was fixed in the end.

The whole thing makes me wonder how spells work in conjunction with unicorn magic. Rarity doesn't seem to have very strong magic but here she was transforming things at an insane level just by saying a few words.