They have a play-test simulator, very similar in look and function to the one at Moxfield (see below)
Agathas Soul Cauldron offers a combination of making your abilities costs generic, negating opponents recursion, buffing creatures, and building up a stack of abilities across your board
That mix keeps a board flowing even through removal without flooding your deck with do-nothing enablers
Dominaria United Commander (DMC) 240 cards Released 2022-09-09 $431.75 317.02 133.44 TIX
The only part of the Bookie that doesnt translate is rerolling any die roll, but thats only because the first set used dice for random effects
I not only spent time researching what cards needed to get swapped in and out during certain matchups, based on other people's experiences with the deck, but I also made myself a quick-reference sheet that I could use the whole weekend to guide me on my sideboard process during matches