Ferro golem seems to be adding cards to owner's hand rather than actually drawing them from the deck.
I built this deck:
066s0056r001mr0016u50274q02n4q0474s0474k057e9037n2017q80180e018po
And drew an entire hand worth of lobotomizers (of which you can see there is only one).
Is this intentional or is there a bug?
If it is intentional, the wording should probably be changed to reflect that the card is not actually being removed from the deck.