"We didn't playtest with Nadu's final iteration, as we were too far along in the process, and it shipped as-is," he admits in the piece, adding that "ultimately the card was my responsibility as the lead designer of the set." It seems clear that making major changes to cards and then not testing those changes is a mistake
Sure, its a tick weaker against mono-artifact builds, but white is usually so stacked with artifact hate that you dont have to overly worry much about those builds anyway
Blacks MDFCs are a nice throwback to Bojuka Bog, and a straight up removal spell
Since it does so many things besides drawing a ton of cards, it takes the number two spot
In the span of three months, this is an 839% price spike, which is undeniably substantial