(Mistveil Glen isn't a spell.)
When Mistveil Glen enters the battlefield, sacrifice it unless you pay 1 life.
, : You may put a land card from your hand onto the battlefield.
: Add to your mana pool. Return Mistveil Glen to its owner's hand.
, 
: You may put a land card from your hand onto the battlefield.: Add 
to your mana pool. Return Mistveil Glen to its owner's hand.
