Comment by oflannabhra

yeah, there is a lot of control of printing artifacts that are required. Some of those do make it out, either through QC issues [0] or through WotC itself gifting test print cards and full sheets to employees or as prizes. However, the ability to generate truly authentic MtG cards requires two things: million dollar Heidelberg offset printing machines and the original offset printing files for the card backs (which have not changed since release as far as I'm aware).

[0] - https://blog.cardsphere.com/misprints-and-human-mistakes-a-b...