When this card destroys an opponent's monster by battle and sends it to the Graveyard: You can Tribute this card to target 1 face-down Defense Position monster your opponent controls; destroy that target.
Ghostricks are an archetype that like to put their monsters in face-down defense position and also have some effects that put your opponent face-down. Ghostrick Witch can continually put opponent's monsters face-down. Ghostrick Yuki Onna places opponent's monsters face-down when she is destroyed by battle. And finally Ghostrick Scare puts multiple enemy monsters face-down and triggers the effects of your Ghostrick monsters.
You can use this card to revive one of your monsters and your opponent gets to also revive their own monster face-down. You can then destroy the monster your opponent revived with Nomadic Force's effect.
Tributes itself for cost
Destroys your opponent's face-down Monster Cards
has anyone else noticed the equip spell axe of fools in the art?