After youre done drawing cards, you get to create a treasure for each opponent who had multiple lands enter the battlefield this turn
It drops our casts of White, Blue and then both by one each or two if both
Once used, Urza, Chief Artificer gives all of your Vehicles menace, making them even more of an issue to block
You can find them in a Happy Meal now Gotta catch them all
I can see it finding a home in Golgari Elves, and in the Modern Horizons 3 Simic Precon, if youre wanting to upgrade that one
It is worth noting that these spells are also fairly big threats against 5 color decks running a lot of original dual lands, shocklands, and triomes too, as the lands they destroy dont have to be basics they only need to have the basic land type in question