Spotting fakes The most expensive MTG cards can be worth hundreds of thousands of dollars, so it helps to know what the real ones look like
Between these threats and more complicated kinds of value engine, discard decks are able to successfully leverage an uneven war of attrition and tempo: drawing enough cheap spells to continuously trade for and neutralise the opponents draws, while also grinding steadily towards a more permanent victory
Also, if it dies then it is reanimated to the owners board
Common methods for indicating this include using markers or dice, or simply placing them in order on the battlefield
It is not that he does any one thing so brilliantly just that he does so so very much at the bargain basement price of one mana
If the search is simply for a number of cards without stating a quality, you must have them find that many cards (or as many as possible, if their library doesn't contain that many cards)