During the hands-on preview this mode was useful to quickly get a grasp of the mechanics and an overview of how gameplay unfolds, but it can be toggled on and off as you wish
It's the same 200-odd cards that everyone else can access and, more importantly, only one or two of the rare ones are required for you to build a highly competitive deck around - after less than a week of checking in daily, I had enough for at least one, and probably with a bit of targeted play two or three, of the main competitive decks already
Luminarch Aspirant is two-cost, two-power on the first turn cycle and is already a good rate on the second turn it survives
This cards final ability is hugely useful in making the most of your Landfall triggers, granting dredge 2 to lands in your grave
Magic: The Gathering really understood the assignment with its Final Fantasy set, and it's going to financially ruin me Dani's ears prick up every time the words 'final' and 'fantasy' are mentioned in the same sentence
The Character Booster is an extremely important part of your sealed pool