Tick anything you already have, in any order. Quests unlock once this is done.
Most big card games have a free client where every card is available. You can learn the format and test a whole deck without spending anything.
Find a free digital client2 things left above. Quests are real things you go and do, so they only make sense once you have what you need.
First one waiting: Build a deck to a curve and win with it