(Forbidding-wood isn't a spell.)
When Forbidding-wood enters the battlefield, you lose 2 life unless you reveal a planeswalker 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.
