In 1v1 I don't think it really matters, unless you only have 1 deck to play kitchen table with just changing decks should generate enough novelty to avoid the build up of bad feelings, and if you're playing competitively it's your call if you want to play nightmarish stuff like Nadu, or something traditionally 'fun' like Aggro
The most useful thing for me is a card tracker and deck builder to keep track of what cards are mine and which I gave up to my child
Purchase Player's Choice Sleeves from Amazon.com StarCityGames Sleeves Priced at $7.99 for 80 sleeves, StarCityGames sleeves offer the perfect way to rep your favorite Magic vendor, while also offering some unique designs such as the creature collection and Grand Prix special editions
Considering the uncertainty around how and when cards from Universes Beyond Commander precons can be reprinted, we might be reaching the point where cards from Warhammer 40k might be good buys
Theres only one slot in each of these boosters for one of the new cards, and there are only 29 new cards that can be found in this set