Lava Pits

Lava Pits enters the battlefield tapped
unless you pay 3 life
{t}Pay 1 life: add {b} or {r}
{t}{b}{r} Sacrifice 2 creatures: Destroy all creatures, they cant be regenerated
"The terrain here is... interesting to say the least.
Now this is why I have portawings!" - Marckerus, Seasoned explorer