(Vault Crater isn't a spell.)
Vault Crater enters the battlefield tapped unless you control one or more lands.
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.
