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

: Sandy of the Burnwillows becomes a 1/1 red and white Citizen Cleric creature with first strike until end of turn. It's still a land.