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