Good multipurpose card. It can set back an opponent by a turn, denying them a key land. If you're running it in Blue-Green, you can mill it out just to spit in their face.

The most unique trick it has though, is comboing with Lost in the Woods and using it on yourself to guarantee you'll "lose" one attacker. It's uncommon to see a scenario like that emerge, but it can shut down Exalted decks and the like pretty easily in formats where they're all legal. (EDH, namely)