(: Add or to your mana pool.)
When Howltooth Vents enters the battlefield, you lose 2 life unless you reveal a basic land card from your hand.
, : Target player loses 1 life.
, : Draw a card, then discard a card.
: Add 
or 
to your mana pool.)
, : Target player loses 1 life., : Draw a card, then discard a card.
