Reef Tower enters the battlefield tapped.
, Pay 1 life: Add or to your mana pool.
, , Sacrifice Reef Tower: Draw a card.
: Reef Tower becomes a 1/1 white and blue Merfolk creature with flying until end of turn. It's still a land.
, Pay 1 life: Add 
or 
to your mana pool.
, , Sacrifice Reef Tower: Draw a card.: Reef Tower becomes a 1/1 white and blue Merfolk creature with flying until end of turn. It's still a land.
