Goblin Swamp enters the battlefield tapped unless you pay .
: Add to your mana pool. Return Goblin Swamp to its owner's hand.
: Goblin Swamp becomes a 2/1 red and black Giant creature until end of turn. It's still a land.
.
: Add 
to your mana pool. Return Goblin Swamp to its owner's hand.: Goblin Swamp becomes a 2/1 red and black Giant creature until end of turn. It's still a land.
