There's been a lot of print variance over the years, and when you add in special printings like Challenger Decks reusing the same set symbols for cards produced by different printers at different times, or cards printed in other regions, there are often subtle but noticeable differences between legitimate identical cards
In Modern, it provides defense against aggro decks and Ruby Storm, but those have been around for ages
I might even throw in an extra suggestion that works well with the pair
Lets use Errant Ephemeron as an example
Pokemon Card "Chansey" sv6 113/101 Korean Ver (AR) quantity Add to cart Add to wishlist Search for: Home All Products Yugioh Korean Version Booster Box Individual Cards Japanese Version Sealed Booster Box Individual Cards English Yugioh Booster Box & Special Set [OCG] Recently listed individual cards [RUSH] Recently listed individual cards Pokemon Korean Version Booster Box Individual Cards Japanese Version Booster Box Individual Cards Indonesian Version PSA Graded Cards Recently listed individual cards Supply Review Login Chat
But for reanimating utility creatures, combo pieces, or big nonlegendary beaters, Persist is efficient and reliable