TOMB OF THE TITANS

Comes into play {t} unless you pay {p/b}.
Pay 1 life to {ut}.
Add {p/b} to your mana pool for each swamp you control.
{1}{p/b}{p/b}{p/b}{p/b}{p/b}: Create a black titan type creature with
the power and toughness equal to your life points
with an ability that says "{p/b}{p/b}:Regenerate this creature ".