Spinerock Stronghold enters the battlefield tapped unless you pay .
: Add or to your mana pool.
Sacrifice Spinerock Stronghold: Add or to your mana pool.
: Spinerock Stronghold becomes a 2/2 black Rat creature until end of turn. It's still a land.
.
: Add 
or 
to your mana pool. or to your mana pool.
: Spinerock Stronghold becomes a 2/2 black Rat creature until end of turn. It's still a land.
