Your Deck must be in Coliseum format.
Your Deck cannot contain fewer than 10 characters.
Your Deck cannot contain more than 10 characters.
Your Deck cannot contain the following 6 Character(s): Guru Cr, Kiki Cr, DJ Korr Cr, GraksmxxT, Graksmxxt Rb, Jackie Cr.
Your Deck cannot contain any double characters.
Stop whining, the new site is fine. A lot of things are outdated and they are finally getting around to updating them.
The only thing they should probably change is making the collection card view by default, since I'll agree that list view *is* annoying.
The new full-art card frames are also great; I look forward to seeing them in-game.