Skeletal Sandbar enters the battlefield tapped unless you control one or more creatures.
, Pay 1 life: Add or to your mana pool.
, , Sacrifice Skeletal Sandbar: Draw a card.
, Sacrifice Skeletal Sandbar: Add to your mana pool.
, Pay 1 life: Add 
or 
to your mana pool.
, , Sacrifice Skeletal Sandbar: Draw a card., Sacrifice Skeletal Sandbar: Add 
to your mana pool.
