Dragonskull Aqueduct enters the battlefield tapped unless you control two or more Shapeshifters. : Add  to your mana pool. Activate this ability only if you control a Swamp. : Add  to your mana pool. Activate this ability only if you control an Island. : Dragonskull Aqueduct becomes a 2/2 black Wizard Cleric creature until end of turn. It's still a land.