Innistrad Checklist 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

(You can mark this card to represent a double-faced card in your library or hand.) ☐ Cloistered Youth ☐ Thraben Sentry ☐ Civilized Scholar ☐ Delver of Secrets ☐ Ludevic's Test Subject ☐ Bloodline Keeper ☐ Screeching Bat ☐ Hanweir Watchkeep ☐ Instigator Gang ☐ Kruin Outlaw ☐ Reckless Waif ☐ Tormented Pariah ☐ Village Ironsmith ☐ Daybreak Ranger ☐ Garruk Relentless ☐ Gatstaf Shepherd ☐ Grizzled Outcasts ☐ Mayor of Avabruck ☐ Ulvenwald Mystics ☐ Villagers of Estwald