Night sky

{p/b}can be paid for with {b} or two life
{t}{b}{b}: if {p/b} was paid for with two life, exile
target permanent and gain two life. If not, draw
two cards then discard a card.
{x}{p/b}{p/b}: exile X permanents where X Is the amount of lands in your graveyard.
{p/b}{p/b} Put one +X/+X counter on Night sky