(: Add or to your mana pool.)
Graven Cairns enters the battlefield tapped unless you control two or more creatures.
: Graven Cairns becomes a 2/1 red and black Goblin creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.): Graven Cairns becomes a 2/1 red and black Goblin creature until end of turn. It's still a land.
