Flood Sandstone enters the battlefield tapped unless you pay .
, : Add , or to your mana pool.
: Flood Sandstone becomes a 2/1 blue and red Cephalid creature until end of turn. It's still a land.
.
, 
: Add 
, 
or to your mana pool.: Flood Sandstone becomes a 2/1 blue and red Cephalid creature until end of turn. It's still a land.
