(Green Swamp isn't a spell.)
When Green Swamp enters the battlefield, you lose 1 life unless you reveal a colorless card from your hand.
, : Scry 2.
: Add to your mana pool. If you played a land this turn, Add to your mana pool instead.
, 
: Scry 2.: Add 
to your mana pool. If you played a land this turn, Add 
to your mana pool instead.
