Its one thing to cash in on reprint equity, but they are hitting these cards hard
The best ones are Viscera Seer, Blood Artist, and Demon's Disciple, but Im sure you could find more interesting ones with some digging
The obvious conclusion is that collectors are afraid that the ban Modern players have been crying for all year could finally be on its way
Li's suite of abilities gives you quite a bit of maneuverability though, so it's worth leaning into the artifact part of the legend to help generate more energy
Without her, I'd say this deck is dead - though Dimir still has plenty of strong options, and other ways to draw cards
He is kept in check by being a creature, and thus easier to remove for most decks