Cinder Underground enters the battlefield tapped.
: Add or to your mana pool.
Sacrifice Cinder Underground: Add or to your mana pool.
: Cinder Underground becomes a 2/1 red and black Dwarf creature until end of turn. It's still a land.
: Add 
or 
to your mana pool. or to your mana pool.: Cinder Underground becomes a 2/1 red and black Dwarf creature until end of turn. It's still a land.
