(: Add or to your mana pool.)
When Tranquil Highlands enters the battlefield, sacrifice it unless you pay .
: Tranquil Highlands becomes a 2/1 white and red Spirit creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.).: Tranquil Highlands becomes a 2/1 white and red Spirit creature until end of turn. It's still a land.
