When Mountain Barrens enters the battlefield, sacrifice it unless you pay 2 life.
: Add to your mana pool.
: Add or to your mana pool. Each opponent gains 1 life.
, Sacrifice Mountain Barrens: Add to your mana pool.
: Add 
to your mana pool.: Add 
or 
to your mana pool. Each opponent gains 1 life., Sacrifice Mountain Barrens: Add 
to your mana pool.
