Change of an unintended minigame: The Play Blade
Trying to queue into a match could be easier. Well the act of selecting what deck you want.
Lets have 5 tracked slots (if your screen is large enough, show all 5 but also shrink the view to 3 or 4).
Then each slot has a trait: Best of 1 vs Best 3 and format.
Thus if you play Best of 1 and Best of 3 Historic but also EDH, these slots keep track of these settings (Even if you delete the deck and add a new one).
It isnt good enough to do if deck is still in list then show last played.
The last type should be an optional wild deck slot. Meaning if you draft a bunch (sealed, premier, quick draft) then this will be a revolving door.
If your events you bought into exceed your total empty favourite slots, then just have a scrolling+arrow option to navigate to these nonfavourites. Easy!