Calciform Reef enters the battlefield tapped unless you pay .
: Add to your mana pool. Return Calciform Reef to its owner's hand.
: Calciform Reef becomes a 2/1 white and blue Bird creature until end of turn. It's still a land.
.
: Add 
to your mana pool. Return Calciform Reef to its owner's hand.: Calciform Reef becomes a 2/1 white and blue Bird creature until end of turn. It's still a land.
