(: Add or to your mana pool.)
Tree Bosk enters the battlefield tapped unless you sacrifice a Rat.
, : Regenerate target Green permanent.
, , Pay 1 life: Put a 1/1 black Rat creature token onto the battlefield.
: Add 
or 
to your mana pool.)
, : Regenerate target Green permanent., , Pay 1 life: Put a 1/1 black Rat creature token onto the battlefield.
