(: Add or to your mana pool.)
Grass-Scrub enters the battlefield tapped unless you control three or more Bears.
, , Sacrifice Grass-Scrub: Destroy target artifact.
, Sacrifice a Swamp: Add to your mana pool.
: Add 
or 
to your mana pool.), , Sacrifice Grass-Scrub: Destroy target artifact., Sacrifice a Swamp: Add to your mana pool.
