Innistrad Charm is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Choose one — • Cemetery Recruitment (Return a creature card from graveyard to hand, draw a card if it's a Zombie.) • Duress (Look at their hand, make them discard a noncreature, nonland.) • Human Frailty (Destroy target Human.)