Lure | Magic: The Gathering
Formats Lure is Legal in
Official Oracle Text for Lure
All creatures able to block enchanted creature do so.
Official Rulings for Lure
10/4/2004 : If a Lured creature is in a band, only blockers able to block the Lured creature are affected by the Lure.
10/4/2004 : The opponent does not have to activate any abilities in an attempt to make his or her creatures block. More specifically, a cost to block of zero mana is an optional cost you can choose not to pay.