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It doesnt copy whether that permanent is tapped or untapped, whether it has any counters on it, whether it has any Auras and/or Equipment attached to it, or any non-copy effects that changed its power, toughness, types, color, and so on
This card has you mill three cards, then forces all of your opponents (since this is the Commander format, there is usually more than one) to choose one creature from your Graveyard
Its a great way to revisit the seriess biggest moments while still getting a booster format built for actual play
A simple magnifying glass can work if it has enough power, though many people prefer a jewelers loupe
You have to maximize the impact of each spell because you don't play many