Scrub Ravine enters the battlefield tapped.
: Add to your mana pool.
: Add or to your mana pool. Each opponent gains 1 life.
: Scrub Ravine becomes a 1/1 black and red Cleric creature with first strike until end of turn. It's still a land.
: Add 
to your mana pool.: Add 
or 
to your mana pool. Each opponent gains 1 life.: Scrub Ravine becomes a 1/1 black and red Cleric creature with first strike until end of turn. It's still a land.
