Regret's Undies

Regret's Undies enters the battlefield tapped, it
doesn't untap during your untap step.
Equipped creature has provoke. (Regret's Undies
can only be attached to a Regret creature)
{4},{t}: Unequip Regret's Undies. Tap target
creature an opponent controls, it doesn't untap
during its controller's untep step. (If Regret's
Undies becomes equipped to another creature, untap
opponent's targeted creature)
Equip {4},{ut} (If a creature is untapped by this
ability, scry 1)