When Murmuring Furnace enters the battlefield, sacrifice it unless you pay 1 life.
: Add or to your mana pool.
Sacrifice Murmuring Furnace: Add or to your mana pool.
, Sacrifice Murmuring Furnace: Add to your mana pool.
: Add 
or 
to your mana pool. or to your mana pool., Sacrifice Murmuring Furnace: Add 
to your mana pool.
