(: Add or to your mana pool.)
Scrub Oasis enters the battlefield tapped unless you pay 1 life.
, , Pay 1 life: Put a 1/1 black Rat creature token onto the battlefield.
, : You gain 2 life.
: Add 
or 
to your mana pool.), , Pay 1 life: Put a 1/1 black Rat creature token onto the battlefield.
, : You gain 2 life.
