Curse of the Nightly Hunt | Magic: The Gathering
Formats Curse of the Nightly Hunt is Legal in
Official Oracle Text for Curse of the Nightly Hunt
Creatures enchanted player controls attack each turn if able.
Official Rulings for Curse of the Nightly Hunt
9/22/2011 : If there are multiple combat phases in a turn, each creature must attack only in the first one in which it's able to.
9/22/2011 : If, during the enchanted player's declare attackers step, a creature he or she controls is tapped, is affected by a spell or ability that says it can't attack, or hasn't been under that player's control continuously since the turn began (and doesn't have haste), then it doesn't attack. If there's a cost associated with having the creature attack, the player isn't forced to pay that cost, so it doesn't have to attack in that case either.