(: Add or to your mana pool.)
When Smoldering Cavern enters the battlefield, sacrifice it unless you pay .
: Smoldering Cavern becomes a 2/1 red and black Dwarf creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.).: Smoldering Cavern becomes a 2/1 red and black Dwarf creature until end of turn. It's still a land.
