Lets turn this around, if AC sephiroth didn't show his "True power" then how do you know he's stronger than kefka and that sephiroth would win?

Screw any books released by SE that tell you it's his ultimate form, anything that can be wrote could be made to look true even it isn't and just because they're the makers, it doesen't mean they don't think "OH YES, LET US ADD ANOTHER RANDOM FACT TO THE LONG LIST OF "FACTS"".


Edit: For example, I could write a book detailing the gay antics of sephiroth and cloud and if SE released it as a book under their name, it would join the rest of the "official" books.

Further Edit: This thread will keep on going, no resolve.