(: Add or to your mana pool.)
When Timberline Coast enters the battlefield, sacrifice it unless you pay 3 life.
: Timberline Coast becomes a 2/1 green and blue Elf creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.): Timberline Coast becomes a 2/1 green and blue Elf creature until end of turn. It's still a land.
