(: Add or to your mana pool.)
When Grave Farm enters the battlefield, sacrifice it unless you pay 1 life.
, Sacrifice a Swamp: Add to your mana pool.
, : Put a 2/2 green Beast creature token onto the battlefield.
: Add 
or 
to your mana pool.), Sacrifice a Swamp: Add to your mana pool.
, : Put a 2/2 green Beast creature token onto the battlefield.
