: Search your library for a Swamp or Mountain card and put it onto the battlefield tapped. Shuffle your library, then put Howltooth Crag on top of it.
, Sacrifice Howltooth Crag: Add to your mana pool.
: Search your library for a Swamp or Mountain card and put it onto the battlefield tapped. Shuffle your library, then put Howltooth Crag on top of it., Sacrifice Howltooth Crag: Add 
to your mana pool.
