They dont have unlimited options and you might not be able to find what youre looking for if its a specific card image, but theres lots of different art to choose from
Is this decided by dice rolls or flipping coins or what
Actually, there's no ethical or acceptable reason to make "proxies" to pass the light test, bend test, and other well-known tests to weed out fake cards because there's no ethical or acceptable use of proxies that requires the proxy to be as similar to a real card as possiblea Sharpie on a basic Island does the job just as well and without any of the legal and moral issues
In fact, I think with Force of Negation I hard-cast it about a third of the time, compared to Force of Will, which I hard-cast probably less than 10% of the time
[1] In this article, well break down how convoke works, how to use it properly, and which cards make the best use of the mechanic
Players speculating on these banned cards leave us scratching our heads