I actually just spoke about this process in depth on DisneyLorcana.com, but to summarize: The Set Lead Art Director for each set is responsible for coming up with the artistic vision for the Enchanted cards
For regular Magic players, there will be a significant number of the non-serialised versions of the four-mana artifact in standard, borderless, promotional art backing, so the One Ring card will make it into Magic sets
Clearly the best aspect of BCW Double Matte Sleeves is the price
Nasty End is especially noteworthy because you can sacrifice Rograkh for three cards instead of two
Silverquill Influence (white-black) Commander: Killian, Strategy: Use Auras and other enchantments to make opposing creatures fight each other while you draw cards and grow more powerful
It will prevent artifacts or enchantments from ever being a thing for your foes with no additional mana down