Combine that with Virtue of Loyalty, and you've got an easy way to make your flying Mockingbirds, Seraph, Sirens, and Wardens massive and difficult to deal with
For Mythics, you absolutely MUST take every Mythic you have less than 4 of
You can print MTG proxy cards at home, or by using a service such as PrintMTG, where you can import decks and print them on demand
Pillar Analysis Extreme Scarcity (~110 exist) | Personal History 22
Having multiple artifacts with the same name is easier these days due to the prevalence of Treasures, Clues, and Food tokens, but youll still need this card alive on the battlefield enchanting an artifact to do the trick