When Windbrisk Retreat enters the battlefield, sacrifice it unless you pay 2 life.
, Pay 1 life: Add or to your mana pool.
, , Sacrifice Windbrisk Retreat: Draw a card.
, Sacrifice Windbrisk Retreat: Add to your mana pool.
, Pay 1 life: Add 
or 
to your mana pool.
, , Sacrifice Windbrisk Retreat: Draw a card., Sacrifice Windbrisk Retreat: Add 
to your mana pool.
