Talk:Magic Duel/@comment-26973802-20130624215152/@comment-5015799-20130625110015

There could be other Unicorns, who live in the same age as Twilight, that are way more powerful than her, except we haven't seen them. I really doubt Twilight is the most powerful, but i could be wrong.

Or it could be like you said, the Age Spell may have been invented, but never been used before. It's kinda like the Sonic Rainboom, when you think about it.