Twilight rolled her eyes, "I really doubt there's a top ten, and I keep telling you that it doesn't really work like that. I'm the Element of Magic, which should in theory put me as one of the most powerful magic users in existence, but I can assure you that both Celestia and Luna could probably beat me in a fight without too much difficulty, because it's your skill at casting that makes the difference, and they have a lot more experience than me. Power is a factor, but a skilled caster can overcome a powerful one.