And as noted, there's no difference between artifact card draw and card draw from other sources (like blue instants, or white enchantments, or any other source)
Instead of playing it safe, black decks trade life, sacrifice creatures, and treat the graveyard like a second hand
Even the ability to take out multiple additional card types combined with the ability to take out multiple copies of that card, or multiple copies of the same token, does not come close to compensating for sorcery speed
Fungusaur comes to mind
This makes Belbe a great big mana commander that also offers some defensive measure by incentivizing your opponents to attack each other instead of you
Ephemerate is probably strongest in 4c Elementals, where every creature has a threatening ETB that can value-spiral out of control quickly