Blackcleave Vents enters the battlefield tapped unless you pay 1 life.
: Add to your mana pool. Blackcleave Vents doesn't untap during your next untap step.
, , Sacrifice Blackcleave Vents: Target player draws two cards, then discards two cards.
: Add 
to your mana pool. Blackcleave Vents doesn't untap during your next untap step., , Sacrifice Blackcleave Vents: Target player draws two cards, then discards two cards.
