Anchor Sandstone enters the battlefield tapped unless you control one or more nonbasic lands.
: Add or to your mana pool.
: Anchor Sandstone becomes a 2/1 blue and red Wizard creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.: Anchor Sandstone becomes a 2/1 blue and red Wizard creature until end of turn. It's still a land.
