When River of the Dead enters the battlefield, sacrifice it unless you pay .
, Pay 1 life: Add or to your mana pool.
, , Sacrifice River of the Dead: Draw a card.
, Sacrifice River of the Dead: Add to your mana pool.
.
, Pay 1 life: Add 
or to your mana pool.
, , Sacrifice River of the Dead: Draw a card., Sacrifice River of the Dead: Add 
to your mana pool.
