(: Add or to your mana pool.)
Wave Sandstone enters the battlefield tapped unless you pay .
: Wave Sandstone becomes a 1/1 blue and red Merfolk creature with flying until end of turn. It's still a land.
: Add 
or 
to your mana pool.).
: Wave Sandstone becomes a 1/1 blue and red Merfolk creature with flying until end of turn. It's still a land.
