(: Add or to your mana pool.)
Whenever Blackcleave Heights becomes tapped, it deals 1 damage to you.
: Blackcleave 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.): Blackcleave Heights becomes a 2/1 black and white Rat creature until end of turn. It's still a land.
