Garruk's Horde | Magic: The Gathering
Formats Garruk's Horde is Legal in
Official Oracle Text for Garruk's Horde
Play with the top card of your library revealed.
You may cast the top card of your library if it's a creature card. (Do this only any time you could cast that creature card. You still pay the spell's costs.)
Official Rulings for Garruk's Horde
9/22/2011 : You'll still pay all costs for that spell, including additional costs. You may also pay alternative costs.
9/22/2011 : If the top card of your library is Dryad Arbor (the only card that's both a creature and a land), you can't play it this way. Dryad Arbor can't be cast as a spell.
4/15/2013 : The top card of your library isn't in your hand, so you can't suspend it, cycle it, discard it, or activate any of its activated abilities.
4/15/2013 : If the top card of your library changes while you're casting a spell or activating an ability, the new top card won't be revealed until you finish casting that spell or activating that ability.
4/15/2013 : When playing with the top card of your library revealed, if an effect tells you to draw several cards, reveal each one before you draw it.