Lawmen Of The Frontier

First Strike
Vigilance

Whenever Lawmen of the Frontier attacks, you may pay {2}. If you do, tap target creature an opponent controls.
Whenever Lawmen of the Frontier blocks, you may pay {2}. If you do, untap any creature.

"The law is a funny thing. It’s easy to see it as an enemy when you’re on the wrong side of it."