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