What the devs have to say about it
Trailer
Random gameplay example
Video tutorials
Wait, didn't you have to choose a starter deck in the beginning?
You have it, but in the missions you don't get to play with it most of the time.
The later missions are quite the pain in the ass to do as well. You don't have to get through them, but it gives some rewards, so yeah.
You can try to just play against other players and then return back to the missions when you've got some more cards.
I also found a few video tutorials for the game:
-> How to spend currency and have a great start
-> How to have a great start with Haven
-> How to have a great start with Necropolis
-> How to have a great start with Inferno
You can obtain everything with gold. But it will take time. And because you get cards based on random packs, it can take a quite a while to get your dream decks. But hey, those who buy seals don't have much advantage in that random aspect. They still need to buy packs and hope for the right cards or craft them in Altar of Wishes.
You can craft any card in Altar of Wishes, but it will cost some amounts of Wildcards. There is a chance to get Wildcards in packs, with guaranteed drops and bonus drops, also you can get those with achievements and such.
i mean, i picked ma deck, then a loading screen came, got an error and did land on the login screen again, then i did login and now i have no deck. new acount i gues?