(: Add or to your mana pool.)
When Scrub Watchtower enters the battlefield, sacrifice it unless you pay 1 life.
, Sacrifice a Swamp: Add to your mana pool.
, : Put a 1/1 Knight creature token onto the battlefield.
: Add 
or 
to your mana pool.), Sacrifice a Swamp: Add to your mana pool.
, : Put a 1/1 Knight creature token onto the battlefield.
