From Dominaria through Core Set 2021 , they were unique cards that were part of the relevant set, but couldn't be found in booster packs
That's why it's often far better to use an effect like the one on Archivist of Oghma , which lets you draw a card whenever a player searches their library
For most deckbuilding, the most important things to search by are the text field, which searches the main rules box on every card, colours to find the right colour cards for your deck, and the type line to weed out creatures from sorceries, or look for the exact creature type you want
For three mana, you give a creature an average of +4/+4
Yes, our scanner can identify most damaged cards as long as the card name and key identifying features are visible