Inventors Fair is a much more flexible artifact tutor, if youre looking for ways to find a specific artifact
If the MDFC does not have a creature on the front face it would stay as a colorless facedown creature
Most modern fakes are able to get the weight about right, and in cases where the card is notably lighter than the real deal, you'll almost certainly already have been able to spot the card as a fake via other means, like quality and feel of the material - making weighing a bit surplus to requirements
This will be good in many decks, but decks like Adrix and Nev will likely love this include
Over the game, this can get you a ton of card quality, or fill up your graveyard, and rack up madness triggers, and so forth
Nonetheless, the block did turn out a few popular milling cards