Obsidian Gorge enters the battlefield tapped.
: Add or to your mana pool.
: Obsidian Gorge becomes a 2/2 black Cleric Rat creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.
: Obsidian Gorge becomes a 2/2 black Cleric Rat creature until end of turn. It's still a land.
