Salt Vents enters the battlefield tapped unless you sacrifice a Black permanent.
: Add or to your mana pool.
Put Salt Vents on top of your library: Add to your mana pool.
, Sacrifice Salt Vents: Add to your mana pool.
: Add 
or 
to your mana pool.
to your mana pool. , Sacrifice Salt Vents: Add 
to your mana pool.
