Wanderwine Marsh
Land (Rare)

Wanderwine Marsh enters the battlefield tapped unless you pay U.

Tap: Add 1 to your mana pool.

Tap: Add U or B to your mana pool. Each opponent gains 1 life.

UB: Wanderwine Marsh becomes a 2/1 blue and black Cephalid Merfolk creature until end of turn. It's still a land.

Steve Prescott