(: Add or to your mana pool.)
Green Swamp enters the battlefield tapped unless you sacrifice an artifact creature.
: Green Swamp becomes a 2/2 black and green Bear creature with trample until end of turn. It's still a land.
: Add 
or 
to your mana pool.)
: Green Swamp becomes a 2/2 black and green Bear creature with trample until end of turn. It's still a land.
