When Sunpetal Reef enters the battlefield, sacrifice it unless you pay 1 life.
: Add to your mana pool. Return Sunpetal Reef to its owner's hand.
: Sunpetal Reef becomes a 2/2 blue Shapeshifter creature until end of turn. It's still a land.
: Add 
to your mana pool. Return Sunpetal Reef to its owner's hand.
: Sunpetal Reef becomes a 2/2 blue Shapeshifter creature until end of turn. It's still a land.
