Whenever Calciform Reef becomes tapped, it deals 1 damage to you.
, Pay 1 life: Add or to your mana pool.
, , Sacrifice Calciform Reef: Draw a card.
: Calciform Reef becomes a 2/1 white and blue Spirit creature until end of turn. It's still a land.
, Pay 1 life: Add 
or 
to your mana pool.
, , Sacrifice Calciform Reef: Draw a card.: Calciform Reef becomes a 2/1 white and blue Spirit creature until end of turn. It's still a land.
