Enforced Respect

Creatures your opponents control can't attack
unless he or she pays {x}{1}. Where X is the
number of counters on Enforced Respect. If the
cost is paid, tap this card. It doen't untap during
its controller's next untap step.
{b}{g}{t}: Put a counter on Enforced Respect.
Sacrifice a creature: Remove 3 counters from
Enforced Respect. Any player can activate this
ability.