Besides the fact that multiple high-level former WotC employees have all stated that these are genuine test prints, our analysis proves beyond a shadow of a doubt that they are legitimate
Getting it at the time of your choosing, in order to save your creature during combat, from a direct damage spell, or to kill an opponent with an unblocked creature is gravy on the train
If an activated ability of a land card in a graveyard references the card it's printed on by name, treat Mirran Safehouse's version of that ability as though it referenced Mirran Safehouse by name instead
So, when you actually turn out the e-Reader device and select Scan Card, inside a red LED turns on, ready to scan in whatever e-Reader card you want
Silver (Deluxe Pack: ex) is not available in Rare Packs
Watchful Automaton: Good in Limited