Haunted Playground

Whenever a creature dies put a ghost counter
onto Haunted Playground.
Indestructible, Hexproof
{t}: Add {b}{b} to your mana pool.
Lose two life, remove a ghost counter: Put a
2/2 ghost creature token with Shadow onto the
battlefield under your control.
"Mommy, push me, mommy!"~ Little angry
ghost girl.