(: Add or to your mana pool.)
Graven Pools enters the battlefield tapped unless you pay .
: Graven Pools becomes a 2/1 red and blue Giant creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.)
.: Graven Pools becomes a 2/1 red and blue Giant creature until end of turn. It's still a land.
