You might ask, if you want this card in your deck, why not just run four copies? In many cases you're correct, but lets run through a basic example of why this wont always work
Mu Yanling, Pathfinder (Showcase Fracture Foil) Another one with gorgeous art, I wouldn't be surprised to see this slotted into a blue artifact-focused Commander deck like Urza, High Lord Artificer
Let her create the Warrior tokens so slowly snowball into victory
The new set is a welcome return to the story of the Realm of Lorcana
Queens Castle The Queens Castle is a location card with seven Willpower and a Move Cost of just one Ink, and it shines with its Using the Mirror ability
The mobile alternative is a much more cost-effective endeavor for collectors to bag their favorite artwork, and cuts down on storage space