It's a great way to ensure an influx of these Strixhaven alt art cards are availably globally, and should make for happy MTG players overall.
There are a few payoffs to drawing cards available to white, so artifact cards are also included here
They'd be gaining massive card advantage, but what use is it your opponent is down four lands, he's out of cards, and you are dead
Plus, having protection from red and white can mean an easy win with infect damage if youre up against an opponent with red and/or white in their deck that wont be able to block Phyrexian Crusaders attacks
With five strength and six willpower, Queen of Hearts, Capricious Monarch has the ability to deal some hurt to your foes - especially when shes able to challenge multiple times a turn using her ability
This "singleton" rule is the source of the format's immense variety and replayability