When I Join game char 15 before the tournament, do you like make automatticaly our decks to skeleton mark and something.?
Never been on tournament lol.
You'd be smart to join earlier than 15 minutes before.
The tournament organizer will post 10 different deck templates in this thread. You may then build decks from those templates. They will contain a certain amount of specific cards and a mark that you have to use. Other than that, you can add anything you want to the deck.
There is no such thing as a skeleton mark. You might be thinking of Death mark. A skeleton build is a template you build a deck around.