(Wooded Cavern isn't a spell.)
Wooded Cavern enters the battlefield tapped.
Whenever a card is put into a graveyard from anywhere, exile that card.
: Add to your mana pool.
: Add or to your mana pool. Each opponent gains 1 life.
: Add 
to your mana pool.: Add 
or 
to your mana pool. Each opponent gains 1 life.
