(Skeletal Precipice isn't a spell.)
When Skeletal Precipice enters the battlefield, sacrifice it unless you pay .
White and green spells cost more to play.
: Add to your mana pool. If you played a land this turn, Add to your mana pool instead.
.
more to play.
: Add to your mana pool. If you played a land this turn, Add 
to your mana pool instead.
