Overgrown Shrine

When Overgrown Shrine comes into play,
sacrifice a basic land and a non-basic land. If you
don't, sacrifice Overgrown Shrine.
{t}: Put a Cleanse counter on Overgrown Shrine.
{t}: Add two mana of any combination of colors
to your mana pool. Use this ability only if
Overgrown Shrine has a Cleanse counter on it.