Murmuring Karst enters the battlefield tapped unless you control four or more nonbasic lands.
: Add to your mana pool. If you played a land this turn, Add to your mana pool instead.
, Sacrifice Murmuring Karst: Add to your mana pool.
: Add 
to your mana pool. If you played a land this turn, Add 
to your mana pool instead., Sacrifice Murmuring Karst: Add 
to your mana pool.
