Lure

Enchant Creature    (CMC:3)

All creatures able to block enchanted creature do so if able.

Deepwood's reach is not long, so it invites its enemies in.

258 MM • ENDiTerlizzi

™ & © 1993—1999 Wizards of the Coast

Legal in: Modern,Kamigawa Block,Masques Block,Ice Age Block,Legacy,Vintage,Freeform,Prismatic,Tribal Wars Legacy,Singleton 100,Commander

Oracle Text (click to copy):

10/4/2004
Lure does not give a creature the ability to block the Lured creature, it just forces those creatures which are already able to block the Lured creature to do so.
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.