Welcome! Glad to have another gamer on board =D If you need anything feel free to ask me or Schlumpfi any time. Also, just out of curiosity, what country are you from? Most people here are from Germany, but the devs and a few others (including myself) are american
1) is it possible to get decks by achieving a higher rank or do you have to go into tournaments?
By decks do you mean cards? You make decks out of cards that you recieve in packs. You get packs by posting your introduction (as you did right here!), winning sit n go tournaments (any 4 players can play at any time), and placing within the top 3 or 4 places in a tournament
2) where can i buy packs at? button for it ingame doesnt work and cant seem to find it on the site.
Right now, you can't buy packs. But there are a LOT more opportunites to get cards right now than there will be after beta. For example, in sealed tournaments, you get to keep the 3 packs that are given to you
3) is time shown for a tournament the actual time in my time(US/Central) or a different time and everyone sees the same time all the time?
If you go to Account (top right of the screen), then click on Settings, there is a drop-down menu where you can put what time zone you are in and the game will automatically change the times to your time zone