(: Add or to your mana pool.)
When Obsidian Timberland enters the battlefield, sacrifice it unless you pay 2 life.
, , Sacrifice Obsidian Timberland: Put a -1/-1 counter on target creature.
, : You gain 2 life.
: Add 
or 
to your mana pool.), , Sacrifice Obsidian Timberland: Put a -1/-1 counter on target creature.
, : You gain 2 life.
