: Search your library for a Swamp or Mountain card and put it onto the battlefield tapped. Shuffle your library, then put Mire of the Burnwillows on top of it.
When Mire of the Burnwillows enters the battlefield, put a -1/-1 counter on target land.
: Search your library for a Swamp or Mountain card and put it onto the battlefield tapped. Shuffle your library, then put Mire of the Burnwillows on top of it.
