

This is a great question, thanks for asking it. I recently went looking for proxies for the first time and found a number of sellers on both Etsy and eBay. The one I settled on has nice art and typo-free text, but the cards seem to be slightly thinner and lighter than a real Magic card. I don’t know yet whether I’ll be able to tell the difference once they’re sleeved up.
I didn’t know about the resources others have suggested here and will definitely check them out for next time.
If I still had any hope of them backing off from Universes Beyond, this probably torpedoes it.