Tapping each respective zone (graveyard, library, exile, etc.) will bring up a browser that will allow you to inspect any known cards, as well as to see the current number of cards in that zone
They can be used in good faith, or for ill, and the verdict on how problematic a card can be is more complex than whats written on it: it requires context of how and when its played, with what cards it is played, and in what scenario
They gain first strike until end of turn
It can help you look for a creature card in your library while also gaining some life
Skullclamp is an excellent part of this deck, as it gives us a way to sacrifice the Illusions when they get big enough while also getting us card draw at the same time
A lot of these decks either wont get opened as collectibles, or they will get opened by people who want the cards for their own deck