Thicket Tar Pit
Land (Rare)

When Thicket Tar Pit enters the battlefield, you lose 1 life unless you reveal an enchantment card from your hand.

Tap: Add G to your mana pool. Activate this ability only if you control a Forest.

Tap: Add B to your mana pool. Activate this ability only if you control a Swamp.

Tap, Sacrifice Thicket Tar Pit: Add 2 to your mana pool.

Steve Moeller