(Slagheap Shores isn't a spell.)
Slagheap Shores enters the battlefield tapped unless you pay 2 life.
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.
