Grizzled Huntmaster 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

When Grizzled Huntmaster enters the battlefield, you may exile a creature card from your hand. If you do, search your hand and library for any number of cards with the same name, exile them, then shuffle. Choose a creature card you own from outside the game. Conjure a duplicate of that card into your hand for each card exiled from your hand this way.