https://yugiohblog.konami.com/articles/?p=5733

New Changes to the Yu-Gi-Oh! Championship Series in the Americas
November 27th, 2013
Starting with the YCS in Atlanta, GA on January 31st – February 2nd, we are changing the way the Top 16 works for YCS events held in the Americas.

Instead of the normal Advanced Constructed Format, we will now have the Top 16 Duelists draft their Top 16 decks, and compete in Booster Draft format, using the Brand New War of the Giants – Round 2.

This will challenge our Top Duelists, measure their skill at the game in the broadest possible sense, and give them a new play experience that’s different from the previous double digit rounds played that weekend before the Top 16. We want our YCS champions to be the best of the best, and true masters of EVERY aspect of the game.

Specifics on how to draft War of the Giants – Round 2 can be found here.

The exact details on how the YCS Top 16 will work it will be posted on the YCS Atlanta FAQ in the next couple of weeks.

**************************************************

I am flabbergasted myself.