Labyrinth Hedge

Whenever a creature attacks you, its controller may pay {2}. If he or she doesn't, that creature gets a maze counter. Creatures with a maze counter do not untap during their controller's untap step.
"The saying goes, 'Pay their toll or else.' They never say what what happens to those that don't pay. But since no one has ever met someone who hasn't paid, everyone hands over their coin." --Ura Dell