What does "of all" mean? and can you use "of all" at the last of the sentence?
"Of all" has the same meaning as "ever" or "in the world". The phrase "of all" is not complete, and is okay to include at the end of a sentence only because it implies that a noun or pronoun follows. In this situation, for example, the full sentence that is implied would be "the most magical fairy princess of all fairy princesses". "Fairy princesses" is implied in this sentence, but it is omitted because it's already known through the phrase "of all". So in this way, "of all" can mean "out of anyone" or "compared to anyone". Ex: You're the best teacher of all! Ex: It was the greatest birthday party of all.