If you are just playing the card straight up, its kind of a build your own Thoughtseize. That said, it was always particularly powerful that you could ensure your opponent doesnt have the card that can stop you, since even if you missed, it meant they didnt have that card
That's what this article is for
Exotic Orchard is another good choice because it can also be used right away, and later in the game its likely able to tap for a lot of different colors
Aside from that, the set provided an easily-splashable Tera Pokmon in Terapagos ex, and a load of support in the form of Area Zero Underdepths, Glass Trumpet, and the Colorless package of Fan Rotom, Noctowl, and Bouffalant
Are we talking something like the following
A portion of the Command Zone will be designated for testing this, and I expect members of the CFP and Wizards staff will be stopping by